Ron, that answer is not satisfactory. Inquiring minds want to know. My guess is that it is because the sock CR2s themselves only contain information about the toe, foot and shin. My guess is that "Use Limits" calculates tolerances based on the entire "bone" structure of the figures concerned. The socks, lacking any information about anything above the shin, are thrown akimbo due to a lack of information for the "Use Limits" process. I'm certain that if I were to modify the socks with an entire invisible bone structure, joints an' all, there would be no problem. I'm not going to do that. They are, after all, quite ugly socks.