Kelley, With the new IK you won't get slipping if you setup the IK properly. With the IK tool, click from the foot to the ankle bone. Then from the ankle to knee. Then from the knee to the hip. Remember you can go in and tweak the constraints to better work with your model. With this setup you can move the knee IK target to pull the leg up and position walks. The advantage of your guide is you get exact foot placement. A good guide by the way, something like that intergrated into Carrara would be a plus I think. The only issues that Carrara does have is with rotations of a bone structure. Like try having your skinned character do a spin on its toes. The best method I have seen for this, is to group all the bones and targets. And then rotate the structure as a whole, and ungroup and animate additional movements. Brian