dont forget, we had one skill on gcd to generate rage
and, thats my thinking, marauders have the best "energy-reg", than other classes: themselv
we dont have to wait, we can spam until bar is full, and again, and again, we cant go empty
and when we have a 1 or 2 mods with alacrity moddet, we had a lower gcd
lower gcd=more dmg, but only when the other second-stats are allright! (hit, crit (only strength augments), surge and a lot of power)