I would wish for "overlapping" zones. Zones that would squeeze in to simulate at least in part some kind of muscle-behavior. I am so fed up with having to either rotate my figure or using postwork to hide the imperfections. And, most important, a feminine behind, which holds up to a sitting position too. GluteRaise doesn't go good enough for me, and I hate V3's Masculine blockbutt. As for the rest, I'll leave all the ERC and InjChan and JCM's to all you techies here.. ;)