of course he can, he hasn't even touched seo yet and every single pro-bodybuilder who went from 21inch to 24 inch arms was due solely and only because of seo. he could become a monster the size of ifbb pros if he chose to use seo.
but that was not what I was talking about.
so no, if we are talking adding 'real' muscle, he would end up fucking his physique.
Even so, will it fix his triceps?...or will they end up looking all fucked up.