On XT hard mode, I am pretty much RJ x 5, WG, RJ x 5 throughout that fight, some Swiftmends. I am NOT LBing the tank or Nourishing spikes.
Here's the most recent XT HM parse -- not particularly proud of it was a bad night and we had some new people completely failing to move for Gravity Bombs, Light Sparks, etc. We wiped twice but frankly there's not much you can do when people have HUA syndrome. I'm linking the third, successful pull anyway:
World of Logs - Real Time Raid Analysis
Here's last night from Iron Council hard as well which is actually more mana intensive than XT in my opinion. Actually IC HM is the hardest fight I currently face in terms of mana:
World of Logs - Real Time Raid Analysis
On XT, we rolled with 2 druid raid healers for foundation, 1 shaman raid healer, and 2 dedicated tank healers. This builds a good synergy where the druids can really roll RJs, WGs, the shaman raid healer can knock out any of the spikes, and 2 tank healers provide all the coverage the tank needs.
I think the pitfall we sometimes fall into is trying to do it all: lay the raid foundation down, catch up any raid spikes, cover the tank, etc. While this feels productive, it ends up not being a good strategy because:
A) It will absolutely oom you.
B) It duplicates effort and more of your mana will translate into overheal instead of effective heal.
C) It doesn't leverage heal team synergy (I guess this is restating B a little more broadly).
The same type of heal team strategy is in effect for IC HM or pretty much any of the other fights you look at in these parses. Sometimes we go up to 6 healers but we often try to drop it to 5 to grab an extra DPS. You will see very, very few Nourish, Regrowth Lifebloom casts in what I am doing. Generally, what I am doing on IC and XT is laying down a foundation of raid heals on 2 1/2 groups (I split the raid with the other druid healer). Rejuv should never fall off the people you are covering in this way, and when Tantrum hits, you can WG into the face of that as well. I will often hold WG a few ticks if I know the Tantrum is incoming to make sure I get full value from it.
If you have coverage like this, everyone on your assignment should generally be topped off with RJs ticking on them going into Tantrum and WG hitting them as well once the tantrum starts. This should more than suffice to keep them up. Additonal 4-piece T8 Rejuv refreshes will also hit some during this as well as glyph of Rejuv. If people aren't near 100% going into tantrum, there is likely some mismanagement of sparks and bombs which will make things very difficult to heal through no matter the strategy.
As a side note, if you do poke around any other fights (you're welcome to) be aware that I DC'd right as Razorscale started and when I came back in, the two binds I have on my mouse thumb buttons (one of which is for RJ unfortunately) would not function correctly (worked about every 10th keypress it seemed). Anyway, I was left with keybinds for Nourish and Wild Growth so don't look at that particular fight as representative of anything I typically do
