Forgive my ignorance, but my highest healer is a only ilvl 200 and from what I can tell, it would take 3 Cure 2/Benefic 2 to reach the max HP of a full Vit tank that is ilvl 210 without crits or healing buffs. That... is cutting it a little close if you don't already have regens on or if you don't have a spare cooldown on hand.

So with current max VIT/HP values, there are no problems? I hope this is the case.