Ive been in most raids (succesful) in WoW and I'm going to just agree to disagree here. DPSing as 4 shaman (or whatever class) is MUCH MUCH MUCH easier than doing two task. (Do I need another much in there?) Yes it gets a bit harder when there are raids with more movement, but seriously I dont see how you can put in the same class Healer+Tank or Healer+DPS or Tank + DPS vs DPS only. That's just silly.