Ok, here is the thing:
I am the MT of my guild but due to it becoming a 25 man from tonight and the fact that our OT can't do anything except tanking, I have to change to DPS pretty often. Problem is I do a fairly low DPS. Read a bunch of guides that said I needed to cap my hit and expertiese. I did so and was doing even lower DPS. Around 20k. I decided to drop the exp cap and go for haste instead. Now it is around 23-24k. I am posting my armory link.
I have the shoulders from Spine of Deathwing but if a use them I will lose the set bonus from t12 which is why I am still with them.
Last night I won the 378 helm from Alysrazor, didn't have the time to put it on with gems and enchant. I got 700 VP and with this weeks reset I can get them to 1700.
My rotation is
Deseases up all the time -> obliterate -> frost strike(when at full RP), howling blast (when Rime is up).
I use Pillar of frost and Apparatus on CD. Pillar is used when all runes are on cd and I blood tap for a blood rune so I don't waste my frost runes.
Oh yeah, the ring from the VP vendor is socketed with mastery because I use it for tanking, just reforge it when I respecc.
Any sort of help will be appreciated.