@Cage: No harm done! I had no problem with your tone, and your assumption was plausible enough. I hope I didn't come across as patronizing in my response, because I know I've been guilty of that before.

For your spandex morph, try to pull vertices forward without spreading them out. That should give you decent results in most poses. Unfortunately, it means that you won't be able to use automatic smoothing (at least not without additional work), and the whole thing gets quite tedious. I thought I had made a morph to flatten out the vulva at one point, but I can't find it.

I think the problem with JCMs for clothes is that everything is very close together in that region, so although I haven't tried it myself, I would expect any program that converts the morphs over will have a hard time figuring out what's what and probably need some manual help.

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