I would venture to say he's never competed.
Actually, you're wrong about that. It's been almost 10 years, but still.
It's funny people here tell me I'm wrong because "it's working really well for Jay, it's not a powerlifting contest". Learn to read: I totally AGREE; it works GREAT for him, and I KNOW it's not a powerlifting contest. But just to clarify it to the dumbest of you...
Is Jay's squatting strong for a 300 lbs professional bodybuilder? No.
Is it average then? No, it's below average. Quite a bit below average in fact.
In other words.. it's relatively weak. Some nut huggers here just fail to admit the fact.