Nice rope demo Brian, good to see the new tools doing some neat stuff. You are a little off on your point of not being able to do the same thing in C3. Carrara 4 does all the grunt work of setting up the IK, adding the tracking target and setting the joint constraints, but all of those are available in C3.(Target helper object on both ends with the last bone in each branch tracking them.) I think Carraras new IK strength is its IK Terminator that keeps the IK from feeding back into bones that you dont want it to. Along with drag and drop setup and better IK solving over all. mdc