I'm not even sure where to start with this post. In no particular order:
-Don't place each sentence on a separate line. Have you heard of the 'paragraph'? It's all the rage around here.
-Your profile already links to your armory. Don't include it in your post as well.
-The DK tanking thread (Suno's Fireside Chat - DK Endgame Tanking) already spells out the AoE rotations for both Blood and Frost specs. Read it before you post again.
Not quite sure if this qualifies as a "simple" question, but I seem to be having threat gen issues during sustained aoe groups.
As an example, ICC 10 plague wing trash, 5700gs boomkin will pull select mobs when using hurricane.
I am trying to isolate the cause, I believe I have it down to spec and/or expertise. I currently dw, and have 2 specs, frost for trash and blood for boss encounters.