I have both M3 and D3... as near as I can tell the "equipment" is the same just sized differently (smaller for D3) The M3 morphs can be loaded onto the D3 gens, but the morphs are distorted. IMO the M2 gens with third-party morphs was the best... I liked Ulfs but the texturing was a major issue with me. With the G4 for men that the link points to, I'm hoping that wont be an issue. (As an FYI... I find the D3 figure far superior to M3, and thats also just IMHO.. :) )