Go ahead, i'm a bit behind of what I normally am this expansion due to quitting for the majority of the first tier and only raiding a little bit now, so everything I say is not 100% proven by theory and what not, but I have ranked highly on WoL on most bosses in the past (cata).
My general idea when you DPS though is to just "press buttons" it's the most important thing to do, if you are not pressing a button at some point, you better be in detterence or you're doing it wrong
(Even then you can snake trap in detterence if the boss is under you...
)
Also another important point is to make sure you're gear is done correctly, use sites like AskMrRobot.com, while generally I've been against AskMrRobot, with all the gear going about it's very useful to make sure you're reforged/gemmed correctly, however don't copy anything from it without looking at what it's telling you, since it is not always correct.
Other sites like FemaleDwarf.com for simulations to figure out which gear to use, forexample I had 522 head and 502 chest, I replaced my 496 chest and head tier, losing the 2set T14, but gaining DPS because of the big agility gain, I suggest you do the same if you have pieces lying around, but is afraid to lose your set bonuses.
Also, these are where my logs are
http://www.worldoflogs.com/guilds/72301/