Hiya with raids coming out i had a few questions about COP i was hoping someone could help me out with.

Here's my character link : http://eu.battle.net/wow/en/characte...rd/Sieg/simple

I've actually got a multistrike neck and http://www.wowhead.com/item=110004&bonus=524 instead of the pebble

Now for the first 2 weeks of the xpac been healing mostly for quick queues etc but i want to play shadow so thought id try some dps on dummies and i was only doing around 10k dps using COP dotweaving . Now i think i understand and executed the rotation well MS + MB to 4 SO then MS, SWP, VT, MB, DP Insanity x2 MB Insanity x2 rinse and repeat.
I then tried it in Auchindoun and was doing 11k or so but in fights like Azzreal i could barley get up DP before he did claw of argus, i was doing 15k on Terrongor before the infernal chased me for the whole fight.

I understand in dungeons and on dummies im not getting the most out of twist of fate (or on dummies at all) but im wondering what everyone else is doing in dungeons etc and is there something obvious im missing rotation or talent wise.

Any help would be appreciated