diff --git a/examples/c++/best-practice-ntt/run.sh b/examples/c++/best-practice-ntt/run.sh
index d8062fe53..a064a57e6 100755
--- a/examples/c++/best-practice-ntt/run.sh
+++ b/examples/c++/best-practice-ntt/run.sh
@@ -51,11 +51,11 @@ ICICLE_CUDA_SOURCE_DIR="${ICILE_DIR}/backend/cuda"
 # Build Icicle and the example app that links to it
 if [ "$DEVICE_TYPE" == "CUDA" ] && [ ! -d "${ICICLE_BACKEND_INSTALL_DIR}" ] && [ -d "${ICICLE_CUDA_SOURCE_DIR}" ]; then
   echo "Building icicle with CUDA backend"
-  cmake -DCMAKE_BUILD_TYPE=Release -DCURVE=bn254 -DMSM=OFF -DCUDA_BACKEND=local -S "${ICILE_DIR}" -B build/icicle
+  cmake -DCMAKE_BUILD_TYPE=Release -DCURVE=bn254 -DMSM=OFF -DG2=OFF -DECNTT=OFF -DCUDA_BACKEND=local -S "${ICILE_DIR}" -B build/icicle
   export ICICLE_BACKEND_INSTALL_DIR=$(realpath "build/icicle/backend")
 else
   echo "Building icicle without CUDA backend, ICICLE_BACKEND_INSTALL_DIR=${ICICLE_BACKEND_INSTALL_DIR}"
-  cmake -DCMAKE_BUILD_TYPE=Release -DCURVE=bn254 -DMSM=OFF -S "${ICILE_DIR}" -B build/icicle
+  cmake -DCMAKE_BUILD_TYPE=Release -DCURVE=bn254 -S "${ICILE_DIR}" -B build/icicle
 fi
 cmake -DCMAKE_BUILD_TYPE=Release -S . -B build/example
 
diff --git a/examples/c++/msm/run.sh b/examples/c++/msm/run.sh
index db4529b87..975c87f93 100755
--- a/examples/c++/msm/run.sh
+++ b/examples/c++/msm/run.sh
@@ -51,11 +51,11 @@ ICICLE_CUDA_SOURCE_DIR="${ICILE_DIR}/backend/cuda"
 # Build Icicle and the example app that links to it
 if [ "$DEVICE_TYPE" == "CUDA" ] && [ ! -d "${ICICLE_BACKEND_INSTALL_DIR}" ] && [ -d "${ICICLE_CUDA_SOURCE_DIR}" ]; then
   echo "Building icicle with CUDA backend"
-  cmake -DCMAKE_BUILD_TYPE=Release -DCURVE=bn254 -DG2=ON -DCUDA_BACKEND=local -S "${ICILE_DIR}" -B build/icicle
+  cmake -DCMAKE_BUILD_TYPE=Release -DCURVE=bn254 -DECNTT=OFF -DCUDA_BACKEND=local -S "${ICILE_DIR}" -B build/icicle
   export ICICLE_BACKEND_INSTALL_DIR=$(realpath "build/icicle/backend")
 else
   echo "Building icicle without CUDA backend, ICICLE_BACKEND_INSTALL_DIR=${ICICLE_BACKEND_INSTALL_DIR}"
-  cmake -DCMAKE_BUILD_TYPE=Release -DCURVE=bn254 -DG2=ON -S "${ICILE_DIR}" -B build/icicle
+  cmake -DCMAKE_BUILD_TYPE=Release -DCURVE=bn254 -S "${ICILE_DIR}" -B build/icicle
 fi
 cmake -DCMAKE_BUILD_TYPE=Release -S . -B build/example
 
diff --git a/examples/c++/ntt/run.sh b/examples/c++/ntt/run.sh
index dbf7cceda..44496b66c 100755
--- a/examples/c++/ntt/run.sh
+++ b/examples/c++/ntt/run.sh
@@ -51,11 +51,11 @@ ICICLE_CUDA_SOURCE_DIR="${ICILE_DIR}/backend/cuda"
 # Build Icicle and the example app that links to it
 if [ "$DEVICE_TYPE" == "CUDA" ] && [ ! -d "${ICICLE_BACKEND_INSTALL_DIR}" ] && [ -d "${ICICLE_CUDA_SOURCE_DIR}" ]; then
   echo "Building icicle with CUDA backend"
-  cmake -DCMAKE_BUILD_TYPE=Release -DCURVE=bn254 -DMSM=OFF -DCUDA_BACKEND=local -S "${ICILE_DIR}" -B build/icicle
+  cmake -DCMAKE_BUILD_TYPE=Release -DCURVE=bn254 -DMSM=OFF -DG2=OFF -DECNTT=OFF -DCUDA_BACKEND=local -S "${ICILE_DIR}" -B build/icicle
   export ICICLE_BACKEND_INSTALL_DIR=$(realpath "build/icicle/backend")
 else
   echo "Building icicle without CUDA backend, ICICLE_BACKEND_INSTALL_DIR=${ICICLE_BACKEND_INSTALL_DIR}"
-  cmake -DCMAKE_BUILD_TYPE=Release -DCURVE=bn254 -DMSM=OFF -S "${ICILE_DIR}" -B build/icicle
+  cmake -DCMAKE_BUILD_TYPE=Release -DCURVE=bn254 -S "${ICILE_DIR}" -B build/icicle
 fi
 cmake -DCMAKE_BUILD_TYPE=Release -S . -B build/example
 
diff --git a/examples/c++/pedersen-commitment/run.sh b/examples/c++/pedersen-commitment/run.sh
index 0f2729f0d..6e4da3bad 100755
--- a/examples/c++/pedersen-commitment/run.sh
+++ b/examples/c++/pedersen-commitment/run.sh
@@ -51,7 +51,7 @@ ICICLE_CUDA_SOURCE_DIR="${ICILE_DIR}/backend/cuda"
 # Build Icicle and the example app that links to it
 if [ "$DEVICE_TYPE" == "CUDA" ] && [ ! -d "${ICICLE_BACKEND_INSTALL_DIR}" ] && [ -d "${ICICLE_CUDA_SOURCE_DIR}" ]; then
   echo "Building icicle with CUDA backend"
-  cmake -DCMAKE_BUILD_TYPE=Release -DCURVE=bn254 -DCUDA_BACKEND=local -S "${ICILE_DIR}" -B build/icicle
+  cmake -DCMAKE_BUILD_TYPE=Release -DCURVE=bn254 -DG2=OFF -DECNTT=OFF -DCUDA_BACKEND=local -S "${ICILE_DIR}" -B build/icicle
   export ICICLE_BACKEND_INSTALL_DIR=$(realpath "build/icicle/backend")
 else
   echo "Building icicle without CUDA backend, ICICLE_BACKEND_INSTALL_DIR=${ICICLE_BACKEND_INSTALL_DIR}"
diff --git a/examples/c++/polynomial-api/example.cpp b/examples/c++/polynomial-api/example.cpp
index 79aa3caa6..06e33fa5c 100644
--- a/examples/c++/polynomial-api/example.cpp
+++ b/examples/c++/polynomial-api/example.cpp
@@ -316,7 +316,7 @@ void example_device_memory_view()
   auto coset_evals = std::make_unique<scalar_t[]>(size);
   auto ntt_config = default_ntt_config<scalar_t>();
   ntt_config.are_inputs_on_device = true; // using the device data directly as a view
-  ntt_config.coset_gen = get_root_of_unity<scalar_t>(size * 2);
+  ICICLE_CHECK(get_root_of_unity<scalar_t>(size * 2, &ntt_config.coset_gen));
   ntt(d_coeffs.get(), size, NTTDir::kForward, ntt_config, coset_evals.get());
 }
 
diff --git a/examples/c++/polynomial-api/run.sh b/examples/c++/polynomial-api/run.sh
index 0f2729f0d..6e4da3bad 100755
--- a/examples/c++/polynomial-api/run.sh
+++ b/examples/c++/polynomial-api/run.sh
@@ -51,7 +51,7 @@ ICICLE_CUDA_SOURCE_DIR="${ICILE_DIR}/backend/cuda"
 # Build Icicle and the example app that links to it
 if [ "$DEVICE_TYPE" == "CUDA" ] && [ ! -d "${ICICLE_BACKEND_INSTALL_DIR}" ] && [ -d "${ICICLE_CUDA_SOURCE_DIR}" ]; then
   echo "Building icicle with CUDA backend"
-  cmake -DCMAKE_BUILD_TYPE=Release -DCURVE=bn254 -DCUDA_BACKEND=local -S "${ICILE_DIR}" -B build/icicle
+  cmake -DCMAKE_BUILD_TYPE=Release -DCURVE=bn254 -DG2=OFF -DECNTT=OFF -DCUDA_BACKEND=local -S "${ICILE_DIR}" -B build/icicle
   export ICICLE_BACKEND_INSTALL_DIR=$(realpath "build/icicle/backend")
 else
   echo "Building icicle without CUDA backend, ICICLE_BACKEND_INSTALL_DIR=${ICICLE_BACKEND_INSTALL_DIR}"
diff --git a/examples/c++/polynomial_multiplication/run.sh b/examples/c++/polynomial_multiplication/run.sh
index d8062fe53..a064a57e6 100755
--- a/examples/c++/polynomial_multiplication/run.sh
+++ b/examples/c++/polynomial_multiplication/run.sh
@@ -51,11 +51,11 @@ ICICLE_CUDA_SOURCE_DIR="${ICILE_DIR}/backend/cuda"
 # Build Icicle and the example app that links to it
 if [ "$DEVICE_TYPE" == "CUDA" ] && [ ! -d "${ICICLE_BACKEND_INSTALL_DIR}" ] && [ -d "${ICICLE_CUDA_SOURCE_DIR}" ]; then
   echo "Building icicle with CUDA backend"
-  cmake -DCMAKE_BUILD_TYPE=Release -DCURVE=bn254 -DMSM=OFF -DCUDA_BACKEND=local -S "${ICILE_DIR}" -B build/icicle
+  cmake -DCMAKE_BUILD_TYPE=Release -DCURVE=bn254 -DMSM=OFF -DG2=OFF -DECNTT=OFF -DCUDA_BACKEND=local -S "${ICILE_DIR}" -B build/icicle
   export ICICLE_BACKEND_INSTALL_DIR=$(realpath "build/icicle/backend")
 else
   echo "Building icicle without CUDA backend, ICICLE_BACKEND_INSTALL_DIR=${ICICLE_BACKEND_INSTALL_DIR}"
-  cmake -DCMAKE_BUILD_TYPE=Release -DCURVE=bn254 -DMSM=OFF -S "${ICILE_DIR}" -B build/icicle
+  cmake -DCMAKE_BUILD_TYPE=Release -DCURVE=bn254 -S "${ICILE_DIR}" -B build/icicle
 fi
 cmake -DCMAKE_BUILD_TYPE=Release -S . -B build/example
 
diff --git a/examples/c++/risc0/run.sh b/examples/c++/risc0/run.sh
index de75fff93..d9b26b680 100755
--- a/examples/c++/risc0/run.sh
+++ b/examples/c++/risc0/run.sh
@@ -51,7 +51,7 @@ ICICLE_CUDA_SOURCE_DIR="${ICILE_DIR}/backend/cuda"
 # Build Icicle and the example app that links to it
 if [ "$DEVICE_TYPE" == "CUDA" ] && [ ! -d "${ICICLE_BACKEND_INSTALL_DIR}" ] && [ -d "${ICICLE_CUDA_SOURCE_DIR}" ]; then
   echo "Building icicle with CUDA backend"
-  cmake -DCMAKE_BUILD_TYPE=Release -DFIELD=babybear -DCUDA_BACKEND=local -S "${ICILE_DIR}" -B build/icicle
+  cmake -DCMAKE_BUILD_TYPE=Release -DFIELD=babybear -DMSM=OFF -DG2=OFF -DECNTT=OFF -DCUDA_BACKEND=local -S "${ICILE_DIR}" -B build/icicle
   export ICICLE_BACKEND_INSTALL_DIR=$(realpath "build/icicle/backend")  
 else
   echo "Building icicle without CUDA backend, ICICLE_BACKEND_INSTALL_DIR=${ICICLE_BACKEND_INSTALL_DIR}"
diff --git a/examples/rust/msm/Cargo.toml b/examples/rust/msm/Cargo.toml
index 7e4489ea3..9d80f56dd 100644
--- a/examples/rust/msm/Cargo.toml
+++ b/examples/rust/msm/Cargo.toml
@@ -6,9 +6,14 @@ edition = "2018"
 [dependencies]
 icicle-runtime = { path = "../../../wrappers/rust_v3/icicle-runtime" }
 icicle-core = { path = "../../../wrappers/rust_v3/icicle-core" }
-icicle-bn254 = { path = "../../../wrappers/rust_v3/icicle-curves/icicle-bn254", features = ["g2"] }
+icicle-bn254 = { path = "../../../wrappers/rust_v3/icicle-curves/icicle-bn254" }
 icicle-bls12-377 = { path = "../../../wrappers/rust_v3/icicle-curves/icicle-bls12-377" }
 clap = { version = "<=4.4.12", features = ["derive"] }
 
 [features]
-cuda = ["icicle-runtime/cuda_backend", "icicle-bn254/cuda_backend", "icicle-bls12-377/cuda_backend"]
+cuda = ["icicle-runtime/cuda_backend",
+        "icicle-bn254/cuda_backend",
+        "icicle-bls12-377/cuda_backend",
+        "icicle-bn254/no_ecntt",
+        "icicle-bls12-377/no_ecntt"
+]
diff --git a/examples/rust/ntt/Cargo.toml b/examples/rust/ntt/Cargo.toml
index 0e6dd3241..dd3fb1d2f 100644
--- a/examples/rust/ntt/Cargo.toml
+++ b/examples/rust/ntt/Cargo.toml
@@ -6,10 +6,17 @@ edition = "2018"
 [dependencies]
 icicle-runtime = { path = "../../../wrappers/rust_v3/icicle-runtime" }
 icicle-core = { path = "../../../wrappers/rust_v3/icicle-core" }
-icicle-bn254 = { path = "../../../wrappers/rust_v3/icicle-curves/icicle-bn254", features = ["g2"] }
+icicle-bn254 = { path = "../../../wrappers/rust_v3/icicle-curves/icicle-bn254" }
 icicle-bls12-377 = { path = "../../../wrappers/rust_v3/icicle-curves/icicle-bls12-377" }
 
 clap = { version = "<=4.4.12", features = ["derive"] }
 
 [features]
-cuda = ["icicle-runtime/cuda_backend", "icicle-bn254/cuda_backend", "icicle-bls12-377/cuda_backend"]
+cuda = ["icicle-runtime/cuda_backend",
+        "icicle-bn254/cuda_backend",
+        "icicle-bn254/no_ecntt",
+        "icicle-bn254/no_g2"
+        "icicle-bls12-377/cuda_backend",
+        "icicle-bls12-377/no_ecntt",
+        "icicle-bls12-377/no_g2"
+]
diff --git a/examples/rust/polynomials/Cargo.toml b/examples/rust/polynomials/Cargo.toml
index 0553e9594..623106978 100644
--- a/examples/rust/polynomials/Cargo.toml
+++ b/examples/rust/polynomials/Cargo.toml
@@ -6,11 +6,15 @@ edition = "2018"
 [dependencies]
 icicle-runtime = { path = "../../../wrappers/rust_v3/icicle-runtime" }
 icicle-core = { path = "../../../wrappers/rust_v3/icicle-core" }
-icicle-bn254 = { path = "../../../wrappers/rust_v3/icicle-curves/icicle-bn254", features = ["g2"] }
+icicle-bn254 = { path = "../../../wrappers/rust_v3/icicle-curves/icicle-bn254" }
 icicle-babybear = { path = "../../../wrappers/rust_v3/icicle-fields/icicle-babybear" }
 
 clap = { version = "<=4.4.12", features = ["derive"] }
 
 [features]
-cuda = ["icicle-runtime/cuda_backend", "icicle-bn254/cuda_backend", "icicle-babybear/cuda_backend"]
+cuda = ["icicle-runtime/cuda_backend",
+        "icicle-bn254/cuda_backend",
+        "icicle-bn254/no_ecntt",
+        "icicle-bn254/no_g2",
+]
 
diff --git a/examples/rust/polynomials/run.sh b/examples/rust/polynomials/run.sh
index f8feb4306..2b1638b32 100755
--- a/examples/rust/polynomials/run.sh
+++ b/examples/rust/polynomials/run.sh
@@ -51,9 +51,9 @@ ICICLE_CUDA_SOURCE_DIR="${ICILE_DIR}/backend/cuda"
 # Build Icicle and the example app that links to it
 if [ "$DEVICE_TYPE" == "CUDA" ] && [ ! -d "${ICICLE_BACKEND_INSTALL_DIR}" ] && [ -d "${ICICLE_CUDA_SOURCE_DIR}" ]; then
   echo "Building icicle with CUDA backend"
-  cargo build --release --features=cuda
+  cargo build --release --no-default-features --features=cuda
   export ICICLE_BACKEND_INSTALL_DIR=$(realpath "./target/release/deps/icicle/lib/backend")
-  cargo run --release --features=cuda -- --device-type "${DEVICE_TYPE}"
+  cargo run --release --no-default-features --features=cuda -- --device-type "${DEVICE_TYPE}"
 else
   echo "Building icicle without CUDA backend, ICICLE_BACKEND_INSTALL_DIR=${ICICLE_BACKEND_INSTALL_DIR}"
   export ICICLE_BACKEND_INSTALL_DIR="$ICICLE_BACKEND_INSTALL_DIR";
diff --git a/icicle_v3/cmake/curve.cmake b/icicle_v3/cmake/curve.cmake
index d804adf6f..c82d1b90b 100644
--- a/icicle_v3/cmake/curve.cmake
+++ b/icicle_v3/cmake/curve.cmake
@@ -24,7 +24,7 @@ function(check_curve CURVE CURVE_INDEX_OUT FEATURES_STRING_OUT)
 
     if (CURVE STREQUAL CURVE_NAME)
       set(IS_CURVE_SUPPORTED TRUE)
-      message(STATUS "building CURVE_NAME=${CURVE_NAME} ; CURVE_INDEX=${CURVE_INDEX} ; FEATURES=${FEATURES_STRING}")
+      message(STATUS "building CURVE_NAME=${CURVE_NAME} ; CURVE_INDEX=${CURVE_INDEX} ; SUPPORTED_FEATURES=${FEATURES_STRING}")
       # Output the CURVE_INDEX and FEATURES_STRING
       set(${CURVE_INDEX_OUT} "${CURVE_INDEX}" PARENT_SCOPE)
       set(${FEATURES_STRING_OUT} "${FEATURES_STRING}" PARENT_SCOPE)
diff --git a/icicle_v3/cmake/field.cmake b/icicle_v3/cmake/field.cmake
index 99ccd6a5a..92f668539 100644
--- a/icicle_v3/cmake/field.cmake
+++ b/icicle_v3/cmake/field.cmake
@@ -24,7 +24,7 @@ function(check_field FIELD FIELD_INDEX_OUT FEATURES_STRING_OUT)
 
     if (FIELD STREQUAL FIELD_NAME)
       set(IS_FIELD_SUPPORTED TRUE)
-      message(STATUS "building FIELD_NAME=${FIELD_NAME} ; FIELD_INDEX=${FIELD_INDEX} ; FEATURES=${FEATURES_STRING}")
+      message(STATUS "building FIELD_NAME=${FIELD_NAME} ; FIELD_INDEX=${FIELD_INDEX} ; SUPPORTED_FEATURES=${FEATURES_STRING}")
       # Output the FIELD_INDEX and FEATURES_STRING
       set(${FIELD_INDEX_OUT} "${FIELD_INDEX}" PARENT_SCOPE)
       set(${FEATURES_STRING_OUT} "${FEATURES_STRING}" PARENT_SCOPE)
diff --git a/icicle_v3/cmake/target_editor.cmake b/icicle_v3/cmake/target_editor.cmake
index 4e8e433a5..33b9e3f19 100644
--- a/icicle_v3/cmake/target_editor.cmake
+++ b/icicle_v3/cmake/target_editor.cmake
@@ -19,18 +19,17 @@ endfunction()
 
 function(handle_ntt TARGET FEATURE_LIST)
   if(NTT AND "NTT" IN_LIST FEATURE_LIST)
-  target_compile_definitions(${TARGET} PUBLIC NTT=${NTT})
+    target_compile_definitions(${TARGET} PUBLIC NTT=${NTT})
     target_sources(${TARGET} PRIVATE
       src/ntt.cpp
       src/polynomials/polynomials.cpp
       src/polynomials/polynomials_c_api.cpp
       src/polynomials/polynomials_abstract_factory.cpp
     )
-      set(NTT ON CACHE BOOL "Enable NTT feature" FORCE)
-    else()
-      set(NTT OFF CACHE BOOL "NTT not available for this field" FORCE)
-      message(STATUS "NTT not available for this field")
-    endif()
+    set(NTT ON CACHE BOOL "Enable NTT feature" FORCE)
+  else()
+    set(NTT OFF CACHE BOOL "NTT not available for this field" FORCE)    
+  endif()
 endfunction()
 
 function(handle_ext_field TARGET FEATURE_LIST)
diff --git a/icicle_v3/src/runtime.cpp b/icicle_v3/src/runtime.cpp
index 4871c6b45..0180467f5 100644
--- a/icicle_v3/src/runtime.cpp
+++ b/icicle_v3/src/runtime.cpp
@@ -275,7 +275,7 @@ extern "C" eIcicleError icicle_load_backend(const char* path, bool is_recursive)
 
   auto load_library = [](const char* filePath) {
     ICICLE_LOG_DEBUG << "Attempting load: " << filePath;
-    void* handle = dlopen(filePath, RTLD_LAZY | RTLD_GLOBAL);
+    void* handle = dlopen(filePath, RTLD_LAZY);
     if (!handle) { ICICLE_LOG_ERROR << "Failed to load " << filePath << ": " << dlerror(); }
   };
 
diff --git a/wrappers/rust_v3/icicle-core/Cargo.toml b/wrappers/rust_v3/icicle-core/Cargo.toml
index 19d11e3ca..48c869ccf 100644
--- a/wrappers/rust_v3/icicle-core/Cargo.toml
+++ b/wrappers/rust_v3/icicle-core/Cargo.toml
@@ -19,5 +19,5 @@ serial_test = "3.0.0"
 once_cell = "1.10.0"
 
 [features]
-g2 = []
-ec_ntt = []
+no_g2 = []
+no_ecntt = []
diff --git a/wrappers/rust_v3/icicle-curves/icicle-bls12-377/Cargo.toml b/wrappers/rust_v3/icicle-curves/icicle-bls12-377/Cargo.toml
index bc8293f48..6f410540f 100644
--- a/wrappers/rust_v3/icicle-curves/icicle-bls12-377/Cargo.toml
+++ b/wrappers/rust_v3/icicle-curves/icicle-bls12-377/Cargo.toml
@@ -20,11 +20,10 @@ serial_test = "3.0.0"
 cmake = "0.1.50"
 
 [features]
-default = ["g2", "ec_ntt"]
+default = []
 bw6-761 = []
-bw6-761-g2 = ["bw6-761"]
-g2 = ["icicle-core/g2"]
-ec_ntt = ["icicle-core/ec_ntt"]
+no_g2 = ["icicle-core/no_g2"]
+no_ecntt = ["icicle-core/no_ecntt"]
 cuda_backend = ["icicle-runtime/cuda_backend"]
 pull_cuda_backend = ["icicle-runtime/pull_cuda_backend"]
 
diff --git a/wrappers/rust_v3/icicle-curves/icicle-bls12-377/benches/ecntt.rs b/wrappers/rust_v3/icicle-curves/icicle-bls12-377/benches/ecntt.rs
index 0fd2c027c..48a79a9b7 100644
--- a/wrappers/rust_v3/icicle-curves/icicle-bls12-377/benches/ecntt.rs
+++ b/wrappers/rust_v3/icicle-curves/icicle-bls12-377/benches/ecntt.rs
@@ -1,9 +1,9 @@
-#[cfg(feature = "ec_ntt")]
+#[cfg(not(feature = "no_ecntt"))]
 use icicle_bls12_377::curve::{CurveCfg, ScalarField};
 
-#[cfg(feature = "ec_ntt")]
+#[cfg(not(feature = "no_ecntt"))]
 use icicle_core::impl_ecntt_bench;
-#[cfg(feature = "ec_ntt")]
+#[cfg(not(feature = "no_ecntt"))]
 impl_ecntt_bench!("bls12_377", ScalarField, CurveCfg);
 
 #[cfg(not(feature = "ec_ntt"))]
diff --git a/wrappers/rust_v3/icicle-curves/icicle-bls12-377/build.rs b/wrappers/rust_v3/icicle-curves/icicle-bls12-377/build.rs
index 81af152bf..073aee01a 100644
--- a/wrappers/rust_v3/icicle-curves/icicle-bls12-377/build.rs
+++ b/wrappers/rust_v3/icicle-curves/icicle-bls12-377/build.rs
@@ -36,10 +36,10 @@ fn main() {
     config.define("CUDA_BACKEND", "main");
 
     // Optional Features that are default ON (so that default matches any backend)
-    if !cfg!(feature = "g2") {
+    if cfg!(feature = "no_g2") {
         config.define("G2", "OFF");
     }
-    if !cfg!(feature = "ec_ntt") {
+    if cfg!(feature = "no_ecnt") {
         config.define("ECNTT", "OFF");
     }
 
@@ -71,7 +71,7 @@ fn main() {
         #[cfg(feature = "bw6-761-g2")]
         config_bw.define("G2", "ON");
 
-        #[cfg(feature = "ec_ntt")]
+        #[cfg(not(feature = "no_ecntt"))]
         config_bw.define("ECNTT", "OFF");
 
         // Build
diff --git a/wrappers/rust_v3/icicle-curves/icicle-bls12-377/src/curve.rs b/wrappers/rust_v3/icicle-curves/icicle-bls12-377/src/curve.rs
index 6fcf6717c..16ae42b15 100644
--- a/wrappers/rust_v3/icicle-curves/icicle-bls12-377/src/curve.rs
+++ b/wrappers/rust_v3/icicle-curves/icicle-bls12-377/src/curve.rs
@@ -13,7 +13,7 @@ use icicle_runtime::{
 
 pub(crate) const SCALAR_LIMBS: usize = 8;
 pub(crate) const BASE_LIMBS: usize = 12;
-#[cfg(feature = "g2")]
+#[cfg(not(feature = "no_g2"))]
 pub(crate) const G2_BASE_LIMBS: usize = 24;
 
 impl_scalar_field!("bls12_377", bls12_377_sf, SCALAR_LIMBS, ScalarField, ScalarCfg);
@@ -34,9 +34,9 @@ impl_curve!(
     G1Projective
 );
 
-#[cfg(feature = "g2")]
+#[cfg(not(feature = "no_g2"))]
 impl_field!(G2_BASE_LIMBS, G2BaseField, G2BaseCfg);
-#[cfg(feature = "g2")]
+#[cfg(not(feature = "no_g2"))]
 impl_curve!(
     "bls12_377_g2",
     bls12_377_g2,
@@ -50,7 +50,7 @@ impl_curve!(
 #[cfg(test)]
 mod tests {
     use super::{CurveCfg, ScalarField, BASE_LIMBS};
-    #[cfg(feature = "g2")]
+    #[cfg(not(feature = "no_g2"))]
     use super::{G2CurveCfg, G2_BASE_LIMBS};
     use icicle_core::curve::Curve;
     use icicle_core::test_utilities;
@@ -60,7 +60,7 @@ mod tests {
 
     impl_field_tests!(ScalarField);
     impl_curve_tests!(BASE_LIMBS, CurveCfg);
-    #[cfg(feature = "g2")]
+    #[cfg(not(feature = "no_g2"))]
     mod g2 {
         use super::*;
         impl_curve_tests!(G2_BASE_LIMBS, G2CurveCfg);
diff --git a/wrappers/rust_v3/icicle-curves/icicle-bls12-377/src/msm/mod.rs b/wrappers/rust_v3/icicle-curves/icicle-bls12-377/src/msm/mod.rs
index 54424afbc..9155fa3af 100644
--- a/wrappers/rust_v3/icicle-curves/icicle-bls12-377/src/msm/mod.rs
+++ b/wrappers/rust_v3/icicle-curves/icicle-bls12-377/src/msm/mod.rs
@@ -1,5 +1,5 @@
 use crate::curve::CurveCfg;
-#[cfg(feature = "g2")]
+#[cfg(not(feature = "no_g2"))]
 use crate::curve::G2CurveCfg;
 use icicle_core::{
     curve::{Affine, Curve, Projective},
@@ -12,19 +12,19 @@ use icicle_runtime::{
 };
 
 impl_msm!("bls12_377", bls12_377, CurveCfg);
-#[cfg(feature = "g2")]
+#[cfg(not(feature = "no_g2"))]
 impl_msm!("bls12_377_g2", bls12_377_g2, G2CurveCfg);
 
 #[cfg(test)]
 pub(crate) mod tests {
     use crate::curve::CurveCfg;
-    #[cfg(feature = "g2")]
+    #[cfg(not(feature = "no_g2"))]
     use crate::curve::G2CurveCfg;
     use icicle_core::impl_msm_tests;
     use icicle_core::msm::tests::*;
 
     impl_msm_tests!(CurveCfg);
-    #[cfg(feature = "g2")]
+    #[cfg(not(feature = "no_g2"))]
     mod g2 {
         use super::*;
         impl_msm_tests!(G2CurveCfg);
diff --git a/wrappers/rust_v3/icicle-curves/icicle-bls12-381/Cargo.toml b/wrappers/rust_v3/icicle-curves/icicle-bls12-381/Cargo.toml
index 8f8ca2979..33fa839d3 100644
--- a/wrappers/rust_v3/icicle-curves/icicle-bls12-381/Cargo.toml
+++ b/wrappers/rust_v3/icicle-curves/icicle-bls12-381/Cargo.toml
@@ -20,9 +20,9 @@ serial_test = "3.0.0"
 cmake = "0.1.50"
 
 [features]
-default = ["g2", "ec_ntt"]
-g2 = ["icicle-core/g2"]
-ec_ntt = ["icicle-core/ec_ntt"]
+default = []
+no_g2 = ["icicle-core/no_g2"]
+no_ecntt = ["icicle-core/no_ecntt"]
 cuda_backend = ["icicle-runtime/cuda_backend"]
 pull_cuda_backend = ["icicle-runtime/pull_cuda_backend"]
 
diff --git a/wrappers/rust_v3/icicle-curves/icicle-bls12-381/benches/ecntt.rs b/wrappers/rust_v3/icicle-curves/icicle-bls12-381/benches/ecntt.rs
index 28371a5c1..c103e4c7d 100644
--- a/wrappers/rust_v3/icicle-curves/icicle-bls12-381/benches/ecntt.rs
+++ b/wrappers/rust_v3/icicle-curves/icicle-bls12-381/benches/ecntt.rs
@@ -1,9 +1,9 @@
-#[cfg(feature = "ec_ntt")]
+#[cfg(not(feature = "no_ecntt"))]
 use icicle_bls12_381::curve::{CurveCfg, ScalarField};
 
-#[cfg(feature = "ec_ntt")]
+#[cfg(not(feature = "no_ecntt"))]
 use icicle_core::impl_ecntt_bench;
-#[cfg(feature = "ec_ntt")]
+#[cfg(not(feature = "no_ecntt"))]
 impl_ecntt_bench!("bls12_381", ScalarField, CurveCfg);
 
 #[cfg(not(feature = "ec_ntt"))]
diff --git a/wrappers/rust_v3/icicle-curves/icicle-bls12-381/build.rs b/wrappers/rust_v3/icicle-curves/icicle-bls12-381/build.rs
index b610a3c50..e4536daa4 100644
--- a/wrappers/rust_v3/icicle-curves/icicle-bls12-381/build.rs
+++ b/wrappers/rust_v3/icicle-curves/icicle-bls12-381/build.rs
@@ -35,10 +35,10 @@ fn main() {
     config.define("CUDA_BACKEND", "main");
 
     // Optional Features that are default ON (so that default matches any backend)
-    if !cfg!(feature = "g2") {
+    if cfg!(feature = "no_g2") {
         config.define("G2", "OFF");
     }
-    if !cfg!(feature = "ec_ntt") {
+    if cfg!(feature = "no_ecnt") {
         config.define("ECNTT", "OFF");
     }
 
diff --git a/wrappers/rust_v3/icicle-curves/icicle-bls12-381/src/curve.rs b/wrappers/rust_v3/icicle-curves/icicle-bls12-381/src/curve.rs
index 911ce7150..382266917 100644
--- a/wrappers/rust_v3/icicle-curves/icicle-bls12-381/src/curve.rs
+++ b/wrappers/rust_v3/icicle-curves/icicle-bls12-381/src/curve.rs
@@ -13,7 +13,7 @@ use icicle_runtime::{
 
 pub(crate) const SCALAR_LIMBS: usize = 8;
 pub(crate) const BASE_LIMBS: usize = 12;
-#[cfg(feature = "g2")]
+#[cfg(not(feature = "no_g2"))]
 pub(crate) const G2_BASE_LIMBS: usize = 24;
 
 impl_scalar_field!("bls12_381", bls12_381_sf, SCALAR_LIMBS, ScalarField, ScalarCfg);
@@ -29,9 +29,9 @@ impl_curve!(
     G1Projective
 );
 
-#[cfg(feature = "g2")]
+#[cfg(not(feature = "no_g2"))]
 impl_field!(G2_BASE_LIMBS, G2BaseField, G2BaseCfg);
-#[cfg(feature = "g2")]
+#[cfg(not(feature = "no_g2"))]
 impl_curve!(
     "bls12_381_g2",
     bls12_381_g2,
@@ -45,7 +45,7 @@ impl_curve!(
 #[cfg(test)]
 mod tests {
     use super::{CurveCfg, ScalarField, BASE_LIMBS};
-    #[cfg(feature = "g2")]
+    #[cfg(not(feature = "no_g2"))]
     use super::{G2CurveCfg, G2_BASE_LIMBS};
     use icicle_core::curve::Curve;
     use icicle_core::test_utilities;
@@ -55,7 +55,7 @@ mod tests {
 
     impl_field_tests!(ScalarField);
     impl_curve_tests!(BASE_LIMBS, CurveCfg);
-    #[cfg(feature = "g2")]
+    #[cfg(not(feature = "no_g2"))]
     mod g2 {
         use super::*;
         impl_curve_tests!(G2_BASE_LIMBS, G2CurveCfg);
diff --git a/wrappers/rust_v3/icicle-curves/icicle-bls12-381/src/msm/mod.rs b/wrappers/rust_v3/icicle-curves/icicle-bls12-381/src/msm/mod.rs
index 1d732923b..f4b4bd17e 100644
--- a/wrappers/rust_v3/icicle-curves/icicle-bls12-381/src/msm/mod.rs
+++ b/wrappers/rust_v3/icicle-curves/icicle-bls12-381/src/msm/mod.rs
@@ -1,5 +1,5 @@
 use crate::curve::CurveCfg;
-#[cfg(feature = "g2")]
+#[cfg(not(feature = "no_g2"))]
 use crate::curve::G2CurveCfg;
 use icicle_core::{
     curve::{Affine, Curve, Projective},
@@ -12,19 +12,19 @@ use icicle_runtime::{
 };
 
 impl_msm!("bls12_381", bls12_381, CurveCfg);
-#[cfg(feature = "g2")]
+#[cfg(not(feature = "no_g2"))]
 impl_msm!("bls12_381_g2", bls12_381_g2, G2CurveCfg);
 
 #[cfg(test)]
 pub(crate) mod tests {
     use crate::curve::CurveCfg;
-    #[cfg(feature = "g2")]
+    #[cfg(not(feature = "no_g2"))]
     use crate::curve::G2CurveCfg;
     use icicle_core::impl_msm_tests;
     use icicle_core::msm::tests::*;
 
     impl_msm_tests!(CurveCfg);
-    #[cfg(feature = "g2")]
+    #[cfg(not(feature = "no_g2"))]
     mod g2 {
         use super::*;
         impl_msm_tests!(G2CurveCfg);
diff --git a/wrappers/rust_v3/icicle-curves/icicle-bn254/Cargo.toml b/wrappers/rust_v3/icicle-curves/icicle-bn254/Cargo.toml
index ddd935c8c..be6529fe6 100644
--- a/wrappers/rust_v3/icicle-curves/icicle-bn254/Cargo.toml
+++ b/wrappers/rust_v3/icicle-curves/icicle-bn254/Cargo.toml
@@ -20,9 +20,9 @@ serial_test = "3.0.0"
 cmake = "0.1.50"
 
 [features]
-default = ["g2", "ec_ntt"]
-g2 = ["icicle-core/g2"]
-ec_ntt = ["icicle-core/ec_ntt"]
+default = []
+no_g2 = ["icicle-core/no_g2"]
+no_ecntt = ["icicle-core/no_ecntt"]
 cuda_backend = ["icicle-runtime/cuda_backend"]
 pull_cuda_backend = ["icicle-runtime/pull_cuda_backend"]
 
diff --git a/wrappers/rust_v3/icicle-curves/icicle-bn254/benches/ecntt.rs b/wrappers/rust_v3/icicle-curves/icicle-bn254/benches/ecntt.rs
index 37b5b80e6..223909f9e 100644
--- a/wrappers/rust_v3/icicle-curves/icicle-bn254/benches/ecntt.rs
+++ b/wrappers/rust_v3/icicle-curves/icicle-bn254/benches/ecntt.rs
@@ -1,9 +1,9 @@
-#[cfg(feature = "ec_ntt")]
+#[cfg(not(feature = "no_ecntt"))]
 use icicle_bn254::curve::{CurveCfg, ScalarField};
 
-#[cfg(feature = "ec_ntt")]
+#[cfg(not(feature = "no_ecntt"))]
 use icicle_core::impl_ecntt_bench;
-#[cfg(feature = "ec_ntt")]
+#[cfg(not(feature = "no_ecntt"))]
 impl_ecntt_bench!("bn254", ScalarField, CurveCfg);
 
 #[cfg(not(feature = "ec_ntt"))]
diff --git a/wrappers/rust_v3/icicle-curves/icicle-bn254/build.rs b/wrappers/rust_v3/icicle-curves/icicle-bn254/build.rs
index b371dbbd6..5af1471a8 100644
--- a/wrappers/rust_v3/icicle-curves/icicle-bn254/build.rs
+++ b/wrappers/rust_v3/icicle-curves/icicle-bn254/build.rs
@@ -35,10 +35,10 @@ fn main() {
     config.define("CUDA_BACKEND", "main");
 
     // Optional Features that are default ON (so that default matches any backend)
-    if !cfg!(feature = "g2") {
+    if cfg!(feature = "no_g2") {
         config.define("G2", "OFF");
     }
-    if !cfg!(feature = "ec_ntt") {
+    if cfg!(feature = "no_ecnt") {
         config.define("ECNTT", "OFF");
     }
 
diff --git a/wrappers/rust_v3/icicle-curves/icicle-bn254/src/curve.rs b/wrappers/rust_v3/icicle-curves/icicle-bn254/src/curve.rs
index ec93a8338..45b9063d7 100644
--- a/wrappers/rust_v3/icicle-curves/icicle-bn254/src/curve.rs
+++ b/wrappers/rust_v3/icicle-curves/icicle-bn254/src/curve.rs
@@ -13,16 +13,16 @@ use icicle_runtime::{
 
 pub(crate) const SCALAR_LIMBS: usize = 8;
 pub(crate) const BASE_LIMBS: usize = 8;
-#[cfg(feature = "g2")]
+#[cfg(not(feature = "no_g2"))]
 pub(crate) const G2_BASE_LIMBS: usize = 16;
 
 impl_scalar_field!("bn254", bn254_sf, SCALAR_LIMBS, ScalarField, ScalarCfg);
 impl_field!(BASE_LIMBS, BaseField, BaseCfg);
 impl_curve!("bn254", bn254, CurveCfg, ScalarField, BaseField, G1Affine, G1Projective);
 
-#[cfg(feature = "g2")]
+#[cfg(not(feature = "no_g2"))]
 impl_field!(G2_BASE_LIMBS, G2BaseField, G2BaseCfg);
-#[cfg(feature = "g2")]
+#[cfg(not(feature = "no_g2"))]
 impl_curve!(
     "bn254_g2",
     bn254_g2,
@@ -36,7 +36,7 @@ impl_curve!(
 #[cfg(test)]
 mod tests {
     use super::{CurveCfg, ScalarField, BASE_LIMBS};
-    #[cfg(feature = "g2")]
+    #[cfg(not(feature = "no_g2"))]
     use super::{G2CurveCfg, G2_BASE_LIMBS};
     use icicle_core::curve::Curve;
     use icicle_core::test_utilities;
@@ -46,7 +46,7 @@ mod tests {
 
     impl_field_tests!(ScalarField);
     impl_curve_tests!(BASE_LIMBS, CurveCfg);
-    #[cfg(feature = "g2")]
+    #[cfg(not(feature = "no_g2"))]
     mod g2 {
         use super::*;
         impl_curve_tests!(G2_BASE_LIMBS, G2CurveCfg);
diff --git a/wrappers/rust_v3/icicle-curves/icicle-bn254/src/msm/mod.rs b/wrappers/rust_v3/icicle-curves/icicle-bn254/src/msm/mod.rs
index f727746e9..dd77b56b3 100644
--- a/wrappers/rust_v3/icicle-curves/icicle-bn254/src/msm/mod.rs
+++ b/wrappers/rust_v3/icicle-curves/icicle-bn254/src/msm/mod.rs
@@ -1,5 +1,5 @@
 use crate::curve::CurveCfg;
-#[cfg(feature = "g2")]
+#[cfg(not(feature = "no_g2"))]
 use crate::curve::G2CurveCfg;
 use icicle_core::{
     curve::{Affine, Curve, Projective},
@@ -12,19 +12,19 @@ use icicle_runtime::{
 };
 
 impl_msm!("bn254", bn254, CurveCfg);
-#[cfg(feature = "g2")]
+#[cfg(not(feature = "no_g2"))]
 impl_msm!("bn254_g2", bn254_g2, G2CurveCfg);
 
 #[cfg(test)]
 pub(crate) mod tests {
     use crate::curve::CurveCfg;
-    #[cfg(feature = "g2")]
+    #[cfg(not(feature = "no_g2"))]
     use crate::curve::G2CurveCfg;
     use icicle_core::impl_msm_tests;
     use icicle_core::msm::tests::*;
 
     impl_msm_tests!(CurveCfg);
-    #[cfg(feature = "g2")]
+    #[cfg(not(feature = "no_g2"))]
     mod g2 {
         use super::*;
         impl_msm_tests!(G2CurveCfg);
diff --git a/wrappers/rust_v3/icicle-curves/icicle-bw6-761/Cargo.toml b/wrappers/rust_v3/icicle-curves/icicle-bw6-761/Cargo.toml
index 17ca58da3..b5c60679b 100644
--- a/wrappers/rust_v3/icicle-curves/icicle-bw6-761/Cargo.toml
+++ b/wrappers/rust_v3/icicle-curves/icicle-bw6-761/Cargo.toml
@@ -21,8 +21,8 @@ serial_test = "3.0.0"
 cmake = "0.1.50"
 
 [features]
-default = ["g2"]
-g2 = ["icicle-bls12-377/bw6-761-g2"]
+default = []
+no_g2 = ["icicle-bls12-377/no_g2"]
 cuda_backend = ["icicle-bls12-377/cuda_backend"]
 pull_cuda_backend = ["icicle-bls12-377/pull_cuda_backend"]
 
diff --git a/wrappers/rust_v3/icicle-curves/icicle-bw6-761/src/curve.rs b/wrappers/rust_v3/icicle-curves/icicle-bw6-761/src/curve.rs
index 9e02abbd7..16e9ed65f 100644
--- a/wrappers/rust_v3/icicle-curves/icicle-bw6-761/src/curve.rs
+++ b/wrappers/rust_v3/icicle-curves/icicle-bw6-761/src/curve.rs
@@ -21,7 +21,7 @@ impl_curve!(
     G1Affine,
     G1Projective
 );
-#[cfg(feature = "g2")]
+#[cfg(not(feature = "no_g2"))]
 impl_curve!(
     "bw6_761_g2",
     bw6_761_g2,
@@ -34,7 +34,7 @@ impl_curve!(
 
 #[cfg(test)]
 mod tests {
-    #[cfg(feature = "g2")]
+    #[cfg(not(feature = "no_g2"))]
     use super::G2CurveCfg;
     use super::{CurveCfg, ScalarField, BASE_LIMBS};
     use icicle_core::curve::Curve;
@@ -45,7 +45,7 @@ mod tests {
 
     impl_field_tests!(ScalarField);
     impl_curve_tests!(BASE_LIMBS, CurveCfg);
-    #[cfg(feature = "g2")]
+    #[cfg(not(feature = "no_g2"))]
     mod g2 {
         use super::*;
         impl_curve_tests!(BASE_LIMBS, G2CurveCfg);
diff --git a/wrappers/rust_v3/icicle-curves/icicle-bw6-761/src/msm/mod.rs b/wrappers/rust_v3/icicle-curves/icicle-bw6-761/src/msm/mod.rs
index fc72055a7..600094ea5 100644
--- a/wrappers/rust_v3/icicle-curves/icicle-bw6-761/src/msm/mod.rs
+++ b/wrappers/rust_v3/icicle-curves/icicle-bw6-761/src/msm/mod.rs
@@ -1,5 +1,5 @@
 use crate::curve::CurveCfg;
-#[cfg(feature = "g2")]
+#[cfg(not(feature = "no_g2"))]
 use crate::curve::G2CurveCfg;
 use icicle_core::{
     curve::{Affine, Curve, Projective},
@@ -12,19 +12,19 @@ use icicle_runtime::{
 };
 
 impl_msm!("bw6_761", bw6_761, CurveCfg);
-#[cfg(feature = "g2")]
+#[cfg(not(feature = "no_g2"))]
 impl_msm!("bw6_761_g2", bw6_761_g2, G2CurveCfg);
 
 #[cfg(test)]
 pub(crate) mod tests {
     use crate::curve::CurveCfg;
-    #[cfg(feature = "g2")]
+    #[cfg(not(feature = "no_g2"))]
     use crate::curve::G2CurveCfg;
     use icicle_core::impl_msm_tests;
     use icicle_core::msm::tests::*;
 
     impl_msm_tests!(CurveCfg);
-    #[cfg(feature = "g2")]
+    #[cfg(not(feature = "no_g2"))]
     mod g2 {
         use super::*;
         impl_msm_tests!(G2CurveCfg);
diff --git a/wrappers/rust_v3/icicle-curves/icicle-grumpkin/Cargo.toml b/wrappers/rust_v3/icicle-curves/icicle-grumpkin/Cargo.toml
index 9350f3b82..c797f76ac 100644
--- a/wrappers/rust_v3/icicle-curves/icicle-grumpkin/Cargo.toml
+++ b/wrappers/rust_v3/icicle-curves/icicle-grumpkin/Cargo.toml
@@ -21,7 +21,6 @@ cmake = "0.1.50"
 
 [features]
 default = []
-ec_ntt = ["icicle-core/ec_ntt"] # why?
 cuda_backend = ["icicle-runtime/cuda_backend"]
 pull_cuda_backend = ["icicle-runtime/pull_cuda_backend"]
 
diff --git a/wrappers/rust_v3/icicle-curves/icicle-grumpkin/src/msm/mod.rs b/wrappers/rust_v3/icicle-curves/icicle-grumpkin/src/msm/mod.rs
index 0013c753c..ca4d73727 100644
--- a/wrappers/rust_v3/icicle-curves/icicle-grumpkin/src/msm/mod.rs
+++ b/wrappers/rust_v3/icicle-curves/icicle-grumpkin/src/msm/mod.rs
@@ -1,5 +1,5 @@
 use crate::curve::CurveCfg;
-#[cfg(feature = "g2")]
+#[cfg(not(feature = "no_g2"))]
 use crate::curve::G2CurveCfg;
 use icicle_core::{
     curve::{Affine, Curve, Projective},