Mmm, I used to play as 2/48/11 for a long time when I had Spellstrike / Spellfire gear and i switched to 50/0/11 even without having the 2 set T5 bonus and it was still a great increase in dps in the shorter encounters for me.
I find Antiphonal's advice the most useful at the moment but just in case my gear will give you more sugestions I'll link some for you!
Armoury:
The World of Warcraft Armory
Be Imba:
Be Imba! - the online Character Auditor for World of Warcraft
Also to add something: I do have Spellstrike hood+pants, whole spellfire set in addition to some nice random rep rewards, kz and Za drops in the bank (no hood of hexing though), so if I have to go Fire spellhit will not be a problem.
My guild's progress is 5/6 SSC and 3/4 TK and we downed first 2 in MH aswell. Our guild is right now in sort of a "regrouping phase" so we're mostly Farming SSC up to Vashj (not even giving her tries atm) and clearing Gruul+Maggy. If it goes smooth like it did this week, we'll down Rage and give the next two a try. Kaz'rogal has yet to die though. The old veterans are all very good geared, but we have a wierd mix of say....15-20 rather well geared people (T5 gear level) and then a rather large jump down to the "mass" of about 40-50 raiders with T4 (or even worse!) level gear.
That's why we are playing the way we are, need to gear up the big mass of people to get enough well geared people to really give MH/BT a serious go.
Oh! And I think I have to edit this in too: We're a CASUAL raiding guild that raids about 5 times a week. But since we're casual and friendly we use signup priority. As soon as the "demanded" classes like tanks and healers are filled, we go with those who signed up first, not what would make the best raid. So sometimes we have 8 locks and almost no melee and next time we have 4 rogues and only 1 lock etc... We then choose wich bosses to do considering the raid group, and not choosing the raid group from what bosses are needed. If you see what I mean. So I can't really count on any kind of ....regularity in what group I end up in...
Now.
If you take all this into account. My gear, my situation in general, and the fact that I'd prefer to stay in the guild I'm in because of RL issues, what is the likely best spec for me (in order to do as much dps as possible) at this point?