If those guys with better genes trained as hard and intense as me, I wouldn`t stand a chance!
I started training bodybuilding in 1983.
Back in the 80s we were very cautious about steroids.
For me winning isn`t surprising at all
All else being equal, the guy with the best genetics will have the best physique. But rarely are all things equal.
I also think you have less separation if you are fuller. If you go to the gym and pump your arms up they are bigger because of the blood volume, the fullness. But the separation is not so defined.