Yeah, without heals I can last for up to 6 seconds about. 10 if I am lucky. With heals it isn't too bad. Just need to rotate cooldowns. Sanguine Rite (with THM damage reduction bonus), Sentinel, Rampart, Featherfoot + Second Wind and Cure every cooldown. It'd be easier if I did it as CNJ, but I don't know how far up the threat meter I would be if I was one.