Have I missed a memo or something about not using Regen on trash pulls AT ALL? I'm talking after they've pulled humongous packs, not a handful of mobs. Apologies if I misread your meaning

I usually PoM/Aero 3, assize if it's off cooldown, few holys, maybe use benediction/eye for an eye/regen if the tank's out of cooldowns. I usually chuck a regen on extra squishies as well, and have had yet to rip hate off the tank to the extent some people are suggesting in this thread, aggro bar rarely moves (maybe if I'm level synced down into Cutter's Cry

Then again I'm extra careful there and in other lower level dungeons, new tanks learning and all that). Depends on the tank really, if they're new to the instance and finding their feet, it's just adjusting to each other's flow. Healers and tanks should support each other!!