I think it would be great to have more default spring bones for characters like glute stomach etcetera rather than just the breasts. I feel like it could add a lot of realism to animations with the extra soft body simulation. I work on Indie video games and there's been so many times I wished this feature was in Iclone. I always find my Animations looking stiff because of the lack of soft skin physics and if you could add this then it would be a life saver!
