This is the fucked up thing about bodybuilding and reading a lot, you get mixed fucking opinions. My arms HAVE grown in the past year, A LOT....however not as much as I would like them to and the rest of my body has......I hit back hard as hell, and I hit bi's hard as hell, I think I give both enough rest before hitting them again, but who knows, you guys got me worried now......From what I have read here, compound movements such as pull ups, dips, chin ups, curls (both barbell and dumbell) should suffice to big arms and not much more is needed?