Can confirm big pulls while Gritless are completely viable and cause so little strain on the healer that my guy actually asked if I was using more cooldowns than usual. (No.) I wouldn't do it with my SMN, who would probably crit everything off me so we'd be playing aggro tag, but it worked just fine with the party comp I had yesterday. Next I'll try it with a random DF group and not a full premade.

Grit isn't really a stance so much as it is a cooldown.