Hope this isn't an asinine suggestion but personally to hit upper pecs I just do heavy neck presses (gironda's "guillotine presses"). It's developed my upper pecs better than incline presses but that could just be how my body reacts to the movement. Give it a try though, you might like them.

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Next Big Thing: Cain Velasquez

5'9 - 190 lbs.
Deadlift: 520
Squat: 415
Bench: 315
40 time: 4.6