GMO
Board Rep
Of course not - but that's not the same thing at all. The rear delt and front delt are two different muscles with different origin and attachment points. The pec major is one muscle with no divisions.
What you just said is like saying leg curls will not target my quads. Of course they won't.
I realize there are various schools of thought on this, but it comes down to muscle fiber stimulation. If you concentrate on stimulating the fibers of the upper pectorals, they will grow. I trained with competitive bb's in South Florida, and in btw their sets they would pose...look at where they needed further development and then train those area specifically. And you know what...it worked. They were able to make their bodies more symmetrical through site specific training. I have seen it with my own eyes, so I am a believer...