Idk, i've been having trouble doing w2w pulls with most healer jobs except AST, it just doesn't matter if the tanks are getting absolutely destroyed, AST just never runs out of fuel. I'm having the most trouble with SCH, I just run out of resources too fast, the tanks are usually taking so much damage that DPSing is out of the question, they'll instantly die if I even so much as blink, my SCH is still 76 so I don't have the full toolkit yet, but i still end up feeling very overwhelmed in big pulls no matter what job the tank is.