Hello
We did our first tries on Cho'Gall this night and I had mana problems for the first time. We run a resto druid, holy priest and holy pala healer setup.
I'm usually ATLEAST 1m ahead of the paladin in healing done and on about the same level as the resto druid in terms of healing done.
On this fight, however, I was behind on the paladin unless I was PoHing all the time which led to mana problems and eventually a wipe because the tank died because of lack of healing.
I don't have a combatlog parse but if needed I can get one on my next raid.
Of course, I use PoM on every CD. I try to remain in Sanctuary chakra all the time because I'm trying to use CoH as much as possible too when there is raid damage. I have renew on the tank (when in range) and I am on dispel duty as well.
Armory: http://www.armoryx.com/anonymous-wow-profile/57984
I'm getting a Tsunami trinket this sunday. I doubt it will help much but it's something.