Those are both good answers, but like I said, I already understand that your lats stabilize the bar. Try to think about the range of motion that your lats control. They're responsible for any downward movement of the arm at the shoulder joint -- so it makes sense that you use them while benching to keep the bar from swaying forward or backward, but it does not make sense that they can generate any significant upward force when you're underneath the bar. It's just the anatomy of it that I don't understand.
I'm not saying that big lats don't support big benches, that's been shown time and again. I'm just saying that I don't understand why you would blame lat strength for failing a lift unless you lose control of it and it falls backward or forward out of your groove.
I'm not saying that big lats don't support big benches, that's been shown time and again. I'm just saying that I don't understand why you would blame lat strength for failing a lift unless you lose control of it and it falls backward or forward out of your groove.