craigls
Hey just checking, to connect the curve to your muscle fiber did you select the mesh first (mesh must have a zFiber on it), then the curve, then select Add Line Of Action from the Ziva menu?
You should get a zLineOfAction node connected to the curve and the zFiber on the muscle. You can increase Pos Sensitivity on the connected zLineOfAction node to amplify the contraction effect.
I can make an example scene if it would help you