okok this is another heavy low rep vs light high reps post. I just dont know if, in this situation if using the right weight. I can lift 150lbs for 3 sets of 8 on the flat bench, OR i can do 1 set of 8 on 180lbs. My goal is to build muscle MASS, not necessarily strength or endurance. Which is best, 3x8 light of 1(poss 2)x8 heavier?