Yesterday we started in SoO hc, but we just wipe two hours on this boss, i feel like we are missing something, everyone know the mechanics but there is two thing that are wiping us: huge ammount of stack on the tanks, the dk tank can easily get 7-9 stack so one of the healer is at charge of dispell him while the priest mass dispell the raid, in the whirl, the damage sometimes is low, other times it one shot 3 people.
What is the best way to handle this boss? burn him with bl and burn all the stack while the healer dispell the dps? or dps switch when they see the first adds?