Oh I have no doubt that he's extremely strong. It's just that those lifts are slightly over what I feel he's capable of, the bench a lot over his true max.
I'm too lazy to look for his exact comp results but his comp maxes are way less than what was quoted here.
Yeah I don't know if he could bench 600 or not. But you've gotta figure that if Chris Bell can get 525 with a shirt in that powerlifting competition he was in for Bigger, Faster, Stronger, that Mike could probably get it in a situation such as that. I'm pretty sure I've seen him do 4 or 5 reps with 405 on the bench before and they were perfect form. Slow.