Greg, unfortunately, is LONG past his ability to reclaim a semi-muscular 400-pound physique.
I remember him stopping my the MuscleMag offices in the mid-'90s and being about 385. I ate lunch with him and Muscletech's creator, Paul Gardiner (when Paul was in the process of getting out of shape for those initial ads ... he reversed this soon after with a cleaned-up diet and drugs for the "after" photos ... all this LONG before there was even a product).
Greg was prepping for, I believe, the Canadian Championships (can't really remember), and he had Paul and me go into the small bathroom with him so he could show us his physique at that point. Guy was MASSIVE.
He began to hit some shots and his back started to spasm violently. I ducked into a stall in fear of being hit with a flailing limb.
Anyway ...
Kovacs shot to shit his body with beyond-excessive drug use. Sure, he could still get huge, but he can never be what he once was. But I do agree, the man should have not pursued bodybuilding competiton, but instead, go into pro wrestling (he had offers from McMahon form what I know) or just do guest posings as a "freak".
Besides, isn't he now in jail?