Debaser said:B fold some things aren't black & white but some certainly are. Physiologically humans are fundamentally the same. Muscles don't work differently for different people.
Ok do you honestly think a guy who could squat 400+ lbs for 20 reps would have small legs if his "fiber type" was a certain configuration? Likewise would that same guy have had huge legs if he had merely done less reps with more weight?
Incline Presses are cut and dry. They are a good movement, but they aren't an "upper-chest solution." Anyone that says differently needs to learn some simple biomechanics. I know that *gasp* it came from a textbook, but just because some guy says his upper chest is big since he inclined his way up to a 350 lb press doesn't make it true. Would he have no upper chest if he worked to a 350-400 lb flat bench press? No way. I had a guy try to convince me that the reason his chest was large and full was due to using incline dumbells. I shrugged it off, noticing that anyone using 180 lb dumbells in any type of press isn't going to have a small chest. Just because a big strong guy says it doesn't make it so. "Correlation does not imply causation." Often people don't realize the important underlying factors of what they do, and mistakenly make incorrect assumptions.
Ill say this: The guy I train with flat benches 400lbs. His incline sucks in comparison (275x3). And his upper chest is almost completely flat, has a droopy look. My flat and incline are very close, and you can definately see a difference in my chest development.