
Originally Posted by
Flexor
Wait a minute, the sternocostal or lower pec is bigger than the clavicular upper pec, so he's completely wrong. Incline will hit the upper chest but you are also almost doing military presses so the shoulders take even more of the load, that is why you can lift more and probably because you are neglecting normal flat bench.
It is good to do incline to hit the pecs from a different angle, but you aren't working the lower one enough if you are doing 75% incline. Some say the pecs work as a unit at all times anyway because the points of origin and insertion are identical, but I believe that since there is a division, tension from the lower pec is not transferred to the upper pec, hence you can get different stresses.
If doing loads of incline is working for you and developing your chest as a whole, just keep doing it unless you want to get your flat bench weight higher.