Some 50 pounders can out preform some 60 pounders. I have seen slower 60 pound Hill style bows shoot no faster with the same arrows than a faster 50 pound Hill style bow. Now if you add a curve or two to the limb design, anything can happen. After a few run ins with moose on canoe trips, I lost my desire to shoot one, but if I did ever go for a moose I would pick a faster bow and a tougher arrow. I have no trouble shooting heavy bows, but I still do most of my shooting with bows in the low to upper 50s. As a ground whitetail hunter, shot accuracy and timing and shooting versatility come first. Every so often I take out a heavier bow and shoot a few hundred arrows, being able to do so with a heavy bow makes the bows under 60 shoot better for me.