So in the ever lasting struggle to improve, Ive come here to seek the help of other established tanks.

So basically, here i am. The World of Warcraft Armory

Besides the obvious need for a new trinket, bracers and cape, the better leg enchant which i have on my t7 pants and the glaring error on my gun enchant, what can i do better, particaully i notice as i move into T7, im losing SBV and block like a bad man, and its affecting my TPS drastically.

I believe i can sacrafice the def on my shield, Ive been trying for a new one but Skull of Ruin dosent seem to want to drop and honestly i havent on COS, other then that, any advice you can offer would be great.