I play both disc/holy and I cannot for the life of me fathom how people are getting 14-18k HPS on fights in 10m on WoL. On easy fights, like Magmaw, even while 2 healing it I was at about 13kHPS and our druid was at ~15k HPS and we had everyone topped off.
On hard fights, like Cho'gall, if I get really high in HPS I run out of mana before phase 2.
I am submitting my armory and logs that I appear in. Note in the logs for Cho'gall that these are wipes and I typically spend ~30 seconds running around in attempt to die last (so I can mass res during SoR).
Feel free to critique. Be as harsh as you wish. I know my shoulder enchant is subpar and that I need to change the spirit>mastery reforge.