Kevin had one of the greatest physiques ever. Amazing genetics.
But
Kevin was the definition of all drugs. Shrink every year, live on the protein and greens and super supplements for 4 months, then shrink.
He never had that foundation of muscle you see in a Ronnie or Kai, or even a Phil Heath now. Guys can't shrink then just blow up anymore.
Levrone was awesome, but there is no better example of being dependent upon the added things. Without them he held no muscle.