In the end i guess it really comes down to what works best for you. I've found if i get stuck on heavey bench, and i hit a pleateu, I work a few weeks of heavey incline flys, and it helps me push through it.

as far as shaping goes ... i wouldnt know i still have too much fat to know what my actual chest looks like.

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I don't do this for my family, my friends, women, accolades, pride, or ego. I do it for me and no one else, its just part of who I am.