I stopped playing a few months before LK was released. I've recently gotten back into the game but back in those BC days, I remember it being easier/more fun to solo content since my talents were a 20/40/40 mix of Holy/Prot/Ret. I'm currently Holy spec and healing is all I do in instances and raids, so I don't really care about my secondary spec when grouped. I go Ret for soloing since it makes the most sense. I don't have much time in the week to raid and I'm at the point where I can either 1) Run dailies 2) Heroic Instances. Both get pretty boring. Going solo into old school content as Holy or Ret spec seems difficult.
Does anyone else think there should a 4th spec option for soloing? One that lets you mix talents from each of the 3 options? I'd be fine if Blizz wouldn't allow that spec to be used when grouped even.