I got this argument from the elite fitness powerlifting board. The prevailing opinion on their is for a big bench you should use your lats much more than your chest for bench pressing. Tricep and Lat strength are what separates a good bencher from a great bencher. In fact they say that most pec benchers, usually suffer more injuries and lift much less weight. So if you want a big bench train your triceps and lats and leave the chest work at home. Would like to hear some opinions on here about this, I was always under the impression the bench was a chest exercise till I read this and some articles by david Tate and louie Simmons.