Strykzor haven't played his priest for 4 months, never been to Ulduar, and never done hardmodes, so don't bother talking to him. He'll get himself banned again soon.
8.6, but I prefer 11% to cover the GCDs better.(If I did the Math right its ~9%)
My guild going to test out the mana burn stategy on thorim next week, I think that's more efficient than Mind Control (Lose your Illusion)we can mc on Thorim(the mced mob does around 7k dps)