I just hit 58 and I'm having fun in outlands. I notice I'm suddenly making a lot more gold, so I may respec YET AGAIN (soon to be 105 gold spent on talents, lol) back to mutilate and try it again. I now have a dagger with +5 hit on it. So I will see how that goes. Maybe I'll do that when I hit 60 since I probably won't do anymore pvp till I'm 69.
I think I was maybe focusing on the collective misses I was seeing and not just Mutilate. My biggest problem with that was doing **** damage. I will try to get it to work though.