I'm gonna come clean. I don't know why anyone else would want this but in my case I want to add Lil Sweet to my pack of T-Rexes in sandbox mode. What I do is add the gene, incubate and release the T-Rex and name it "Lil Sweet".
Probably not, resizes seem to be a lot of trouble and I'm not sure it would possible to have it as a sort of cosmetic gene (the recent remodels all use the same sized rig as far as I can tell).I am never gonna get this aren't I?