Lou was a huge dude, yeah, but 560? Nope.
I'd give him a press somewhere in the high 400s but that's it.
Bench press prowess is specific and requires specific training, as do all the fundamental lifts. A huge guy will likely press a lot, relatively speaking, but nowhere near what are world-class numbers.
Mendelson has the biggest raw press at 715 and that lift had zero pause (nice press command, Ed Coan
).
A five hundred-pound bench is HUGE. I mean, how many drug-free and raw lifters can even hit that weight ... guys who specialize?! I've never seen one.
Let's not forget photo shoots, etc. often employ fake plates, too.
Louie, at his biggest (a.k.a. most gassed) would probably bang out 405 for five to eight reps, and none with anything resembling a pause.