My guild had our first try on 25m General V tonight, and since I was one of 3 healers in our 10m attempts, I explained it to the other 4 (total of 7 healers). We decided to try to split up the healers on the MT, 3 at first until they ran oom, 3 others after that, with 1 healing the mana users getting into the vapors for mana regen. When the first 3 started healing, the other 4 were spotting just incase the 3 were having issues of whatever kind. Of course that was the plan at first. The first 3 healers' mana was great for quite some time. I ended up calling the switch on healer groups almost immediately after the first Surge of Darkness. But we ended up having to use nearly all the healers when we got to about 40% (unfortunately with the boss getting heals), and burning vapors every 30 seconds to 1 minute because of everyone getting really low. I'm here to ask on a healers perspective: managing 7 healers and making sure we always have heals on the tank, how should this be done? Is splitting up the heals like this ok to do?
We simply have all healers in melee range. That way our ranged camps always get their shadow crashes (and the curse), while the healers can concentrate entirely on healing (using stopcasting to save mana). After every surge, the DK pulls in one Vapor and kills it right next to the General, so that all healers can get mana without worrying about being bunched up and getting a curse or a shadow crash since they are in melee range.