My latest gear acquisition has finally pushed my stats to the point where my PvP-oriented Survival spec is out-DPSing my PvE-oriented BM spec on paper.
I'd thought this day would come... my penchant for stacking Agility over AP probably helped, but since a PvP-Survival spec isn't too different from a PvE-Survival spec, it was only a matter of time, really.
2pc T7.5 + 2pc T8 is still more DPS than 4pc T8 for my BM spec, but 4pc T8 is now superior for my Survival spec. Basically, the order is:
BM 4pc T8 < BM 2pc T7.5 + 2pc T8 < Surv 2pc T7.5 + 2pc T8 < Surv 4pc T8
There isn't *too* much difference between BM and Survival - 40-60 DPS assuming an absolutely perfect shot rotation and raid conditions, so I'm not worrying too much yet, especially since paperdoll DPS never turns out to be the same as actual DPS.
If, however, it ever gets to the point where I'd do significantly more DPS with my PvP spec.... I might have to think about raiding with it as well, or at least change something in my BM spec to make it more raid-optimal.
Probably the former; I get attached to certain talents/glyphs; I don't know if I'd want to give those up!