Sunder armor? why? Negative!!! If you want an AoE threat glyph grab cleave if anything.
Furture more, don't rend. 1 devastate is more threat than I rend, so it is a threat and dps loss to use rend.
I currently have 4 buttons on my bars for my threat rotation, I press 2. "3" is my /cast devastate /cast heroic strike macro, "4" is my shield slam macro, then 1 is just devastate without HS bound to it, and 2 is HS. I usually just press 3 and 4 and can output about 11k TPS with my setup (very low threat stats too, 121 hit/23 expertise).
Revenge: is currently lower TPS and DPS than devastate and should be dropped from your rotation unless you literally have no range to do anything else.
Spec: take a gander at the spec I have outlined in my guide (link in sig) it should increase your TPS by a lot.
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