Thanx for the reply, Joe. I pretty much discarded the first approach for the reasons stated, and will play with the second idea. But working with IK is still bad news for Poser Animation - even when working with the package's built-in walk designer. On too many occasions, the knee angle of the model "snaps" from a non zero value (slightly bent) to a zero value so that a jarring discontinuity occurs in the animation... or the knee joint snaps from vertical to one side, or something else that COMPLETELY ruins the continuity of the animation. As the feet are being locked from skating, this means having to search through many other parameters, hopefully (haven't always been succesful) to find where I can tweak a parameter so that it won't be noticeable, but so that the knee joint won't snap around without control. Has anybody else seen this phenomenon?