Not the best genes, by any means.
Incredible work ethic.
Way ahead of the pack with regards to conditioning, christmas tree, and shredded glutes, vascularity second to none, things other guys didnt know were posible.
IMO, juiced up to the gills, way more than the rest, its just the type of intense character he was, everything to extreme. Dude must have been chemistry wizard.
If he was competing today, most probably fall under gh gut category.
Did good for bb though.