Quote Originally Posted by FallenWings View Post
The problem with this method of raid damage contribution is that it is ultimately unreliable. As far as I'm aware, healers do not account for Parries or Blocks in their rotational healing. Fights are scripted enough where healers who know the timings will heal and deal damage on a strict timer unless they're fixing stupid. Healing is also powerful or can get powerful enough that the extra 20% from Sheltron will not matter if both tanks only need 1 cure to heal all damage, thus nullifying the potential healer DPS increase it could have provided.

At best you could argue that Hallowed Ground provides 3 free healer GCD's with it's 10 second duration and no requirement of a benediction versus Holmgang's 6 and benediction requirement. But then Living Dead blows both of them out of the water with its 18 second potential if we're talking about such high coordinated play.
As far as sheltron goes, yes we do take planned usage of that into account. Buffs that are still rng dependant like bulwark and drks parry up skill not so much. During early seph ex our pld would sheltron every tower to ensure that a cure I was sufficient after Da'at to ease mp usage.

Your math is also flawed on the ultimate cd exchange for healer gcds. Given same circumstances (~9 seconds to 0 hp + ~9 seconds invuln then bene) for living dead, a pld or war can wait to pop hallowed ground or holmgang until they are danger low, which should be at least roughly 6-7 seconds if it takes 9 to dead. That makes a pld give 15-16 seconds, a war 11-12 seconds, and for planned usage a war doesn't need a heal after as they can IB, Equilibrium, ToB to well over half hp in the span of 1 gcd. pld vs drk is maybe a differenc of 1 gcd depending on how scared the pld gets and war vs drk might be 2 gcds difference.