So it happened last night...
Phase 3 on Prince. Unlucky combination of Axes, SW:Pain, and probably a step too close to him, and I'm a dead tree. I'm getting a combat res from our feral druid, and with all buffs gone, I immediately chug down a mana pot (thanks to Alchemist Stone I'm getting a little more out of it) and innervate. A second later our other main healer goes down, and with the tank taking heavy damage, I just don't have the time to resurrect him. In fact, things turn from bad to worse and I find myself spamming HT like a crazy. This works for a while - until innervate fades and the SPriest in my group joins the spectators. No more innervate, potions on CD, and just enough mana coming back in for smaller heals. At about the same time I was completely OOM, I die again since I healed everybody but myself (as per usual) and with just the backup healer and a mage still standing, Prince finally dies...
I'm seriously wondering now if I should make possible death and the need to innervate part of my strategy for this fight by swapping my +heal trinket for the "Bangle of Endless Blessings" and my mace for Nightbane's staff (whenever it happens to drop for me)
My current main/offhand/trinket combination gives me
575 +heal (788 with trinket activated)
34 +int
12 +sp
Nightaff/Bangle would result in
429 +heal
34 +int
55 +sp (188 with trinket activated)
That's a ton of mana during an innervate, and even without I'd still get a little extra.
Bonus healing for the ability to recover a little faster and overall last a little longer... I just can't make up my mind. We had plenty of healing available during Phase 2, and I didn't even use my current trinket. We were very heavy on melee dps last night, which is rather unusual, so the damage on the raid (shadow nova especially) and the required heals should drop quite a bit with our normal setup.