My 25m guild is currently 4/6 normal (hooray) and I've been going Sub for every fight, with the exception of the first boss where I'm combat. So far, I've ranked on World of Logs for every fight I've done... and got some pretty high ranks for Sub (top 10). Granted this is just normal mode (25m), but it makes me feel "good" :-)
However, after glancing at the other specs on WoL for all other fights, Sub is being out performed. Typically its Assassination > Combat > Sub (with the exception of the first fight). And after seeing...
http://raidbots.com/dpsbot/Overall_D...14/60/default/
... I feel like I am gimping my raid a little by not playing the best output spec, despite ranking on all the fights and despite being one of the top 3 damage in raid every fight. I feel like I could do more DPS if I chose to play Combat or Assass.
So whats this post about? Just a concern... I want Sub to be the almighty (for single target fights) and perhaps not everyone is giving it a try or some people are not performing the correct rotation (myself included)... or the other two specs are just easier to maintain when encountering new fights. Or maybe its like in Cata where it scales better than the other two specs with better gear.