It also depends on the DPS in your group. If you’ve got some freakish, well equipped destro warlocks or fire specced mages who can get a few crits in a row and QUICKLY close the threat gap (especially on non-tauntable mobs), I think I’m sticking with a quicker, more reliable means of attack.

Also, depending on your weapon, you might value the buffs too much. I probably wouldn’t switch from my ‘Suneater’ to my ‘Edge of the Cosmos’ just based on the stam/def/dodge that I’d lose.

BUT, maybe I’ll try doing this on an easy boss somewhere, just to see how my TPS measures up.