Not to be the anti-haste zealot in the room, but you ranked because you're using 4 and a half healers (that shaman...wow, using Healing Wave more than Chain Heal on most fights), not because of anything specifically related to your build. Try a fight where you actually have to use more spells than Uplift and Renewing Mist (like, say, Iron Qon) and see how well your 10k haste does for you.