I understand that a Joint Controlled Morph will increase in value as the joint it's connected to bends, like it's flexing.  Other than that I do'nt know much about JCMs though.  In fact I'm not even sure which morphs are?  Does David or Michael 2 come with them?  Are they something that needs to be configured, or just turned on?

What I'm wondering is; if we first set all of David's very muscular MTs, and then turn on JCMs, in Reverse, could we then make his joints bend?  I think this would give us a really nice look at what kind of excercises he would have needed to be doing to get his physique?

I'd like to do an animation of a Boy David turning into a Muscular Mature David, and if I could even get in what motion that would be correct by, I think this should be really interesting!