Is that even possible?   I'll try to be as brief as possible.  I made a mod that makes you ripped by changing the normals used. I did it by adding new Texture Sets and then adding them to the SkinMaleHumanBody and SkinFemaleHumanBody formlists.   That mod works as expected, but then its users gave me some nifty ideas that can only be made with scripts. After so much digging and testing, I found I could use NiOverride, but I still can't manage to pull this.