Guys I've been training pretty hard for four years. I'm a senior in high school and I weigh 240. I'm 5'11'' and around 20% bodyfat. I'm pretty strong, but I don't look as muscular as I would like to. My chest is thick, but it does not sweep out at the bottom part like a bodybuilder's would. It just kind of dwindles into nothingness. How do I train to get my lower pecs to sweep out and look impressive? I've always pyramided up to 2-3 final sets of a heavy weight for 2-4 reps. Should I try to lower the weight and do more reps? Any other suggestions? Thx