Quote - JCMs? joint something......???

Joint Controlled Morphs. The later figures like V3 and V4 have these - they're morphs that work along with the joints to make the figure bend better, since Poser's joint parameters don't have enough flexibility to always get the right shape. Since they are in the figure, you should theoretically replicate them in the clothing too, else the figure will bulge where the clothing doesn't and there will be POKETHROUGH. (Da - da - daaaah..!)

However V4's JCMs aren't as numerous as V3's were, and V4 also has those magnet thingies to help her joints out. I was looking at the PoserWorld catsuit for V4, and that has no JCMs, so maybe I can get away without them too. I don't know; this is my first bit of V4 clothing, so sacrifices may have to be made in the interests of learning. And when I say sacrifices, I mean sacrifices. Real chicken giblet stuff. :)