I had planned to have a spec for heroic 5-mans and a seperate spec for raiding for all my toons, since there's some things I need covered in a 5-man situation, but in a raid situation I wouldn't need because they are standard from other class specs. Or things that are just useless in a raid sitation that I use in heroics all the time. But all the changes over the course of the expansion and recent patches, I couldn't even be bothered to stick around to try it on PTR.