You can define a grid on any two parameters, I think the script should eat it. You could make a grid [head.bend]x[rFoot.twist], although that would not be very useful :) The implementation I had sent can only take 2 parameters for a grid, but I had made an implementation that can take 3 of em. The problem is that the number of dials is exploding. I thought it would work in general, though. E.g. a 3x3x3 Grid comes to 27 dials. 4x4x3 or so would be 48. I thought its a lot. And I wasnt sure if Poser can eat all the ERC without difficulties. You are pioneering :) The legs have the problems that they come very close together. There is a zone were the bends interfere. I guess its because of the smoothing zone. That makes it difficult to create really independent JCMs for each leg.