I watched some of Greg's training video on YouTube.
I have no doubt he was a very strong guy, but the way that video was edited was laughably deceitful. It showed him Smith incline pressing a decent weight (maybe four plates/side?), but nothing extraordinary, and certainly not for a purported "giant."
Then, they shot from an oblique angle when more plates were added over the course of a couple of sets. Five plates, then maybe six?
At that point, the camera zoomed in to a tight shot of Greg pressing again. You couldn't see the additional plates from that perspective, and it was obvious that the editor just recycled the footage of him from the previous sets -- sometimes even looping reps from the same fucking set!
I wonder if our good Fortress had the opportunity to train with Kovacs. I know Robert said he was gigantic, dwarfing even an off-season Nasser.
Tangentially, the honourable Mr. Fortress did train with Nasser once and, as I recall, Rob was shocked at how weak El Sonbaty was for his size..."struggling with 315 inclines," I believe.