I'm sure someone will come along soon that knows a lot more than me but I'll throw in my 2 cents. I don't know much about pro but know epi is a good lean gainer. Although 60 of epi is probably on the high side. That's the one issue with products that are already stacked, u might end up with too much of one compound and not enough of another. Think most guys are running 30-50 on epi. Although ur a big dude at 250 plus so 60 might not be too bad but I would probably start lower with that. I plan on running an epi cycle of 6 weeks at 30/30/40/40/50/50.