I've ended up as my guild's main tank, and raid leader, without really intending to. These things just sort of happen some times.
Anyway, so far we've been doing fine, Naxx10 cleared, Malygos to phase 3, etc. Biggest thing that bothers me is on super-heavy hitting mobs, like Malygos, I'm finding myself at disturbingly low health numbers when I miss a parry or two, and BS and IBF are down. Hopefully with the patch, the damage curve will be smoothed out, and I can regem, putting me from 28.6k HP unbuffed to probably around 31-32k.
"As surely as I live forever, when I sharpen my flashing sword and my hand grasps it in judgement, I will take vengeance on my adversaries and repay those who hate me."