@SaintFox: Thanks for this! If I manage to fix the problem, I'll have to check back with PhilC, because I promised him there wouldn't be any changes in the body. But there's a good chance that it can't be fixed by simply adjusting the JPs, anyway, and I won't add any new JCMs at this point.

Besides, real skin often creases and wrinkles in extreme bends, so how can we expect Antonia's to always be perfectly smooth? Also, more than the tiniest amount of side-side on the shins and lower arms for fine-tuning a pose is usually not the best idea, and you should probably try to twist the thigh instead. (Ideally, we'd have all the rotation axes perfectly oriented so that every bend is exactly the way it should be. But that's very tough to achieve in Poser.)

-- I'm not mad at you, just Westphalian.