Monster customization is heavily limited by Assembly code, huh.
Females don't have that much "additional" customizing slots. "Body Hair" and "Dragon Tail" are mostly unique to some races, especially true for Complex Breeding mod.
But monsters apparently have lots of racial unique customization slots, never even noticed that disparity.
At this point I really can't tell where this mod is going.
Optimizations and fixing textures first. Pregnancy belly size tied to fetus count as well. After that might take a shot at randomizing monster looks a bit more than base game does.