Since the time of this post, I could make another suggestion. I don't know if this is possible in Daz, but what I'll do is, I'll make two versions of the model, the base mode, and then a model with the emaciated morph. In blender I'll combine the two meshes together to make a 'soft body' or I'll treat the base shape as a 'fabric with inflation pressure' and the emaciated body acts as the skeleton. then while doing extreme poses and movements, the physics simulator basically simulates the fat/skin/muscle of the body to make physically corrects bends and collisions... its been a while since I did that, don't know if I have any renders to show it, but to be honest, it was cool but wasn't worth it. better to turn off the mesh smoother in daz, set the mesh smoother to current shape, and then turn on mesh smoothing again with 6 or 8 iteration 'to base shape' tend to look cleaner, nicer... or I'll give up and use a mesh with custom topology.