tgw85: Muscle doesn't droop like fat does. As explained, it is all about genetics. If you are so worried about something that may not even happen to you, I would suggest you give up all flat bench work and do inclines only. Savy?
I think you should stop riding Branches nuts and hit the fucking gym... It really isnt healthy to ponder on another mans body... unless your Gixx... and well... It still can be good for you...
the best thing for you to do is work out solid for a few years and see what yours do... Stop worrying about others...