Updating value of chart

[oscarfitinghoff]

I'm trying to use the gauge chart for showing upload percentage but the bar only flickers in place instead of showing the correct value. Only when the value reaches 100 the bar catches up.
You can see it here: http://jsfiddle.net/sab3woh7/2/
Just select a large image and the problem will show it self.

Realized that I could set duration to 0 in updatePaths but that removes the animation for all.