Im at 800 right now, and in normal instance PUGs I can pull agro off the tank pretty easily. Pretty much my main goal in instances is to attempt to stay below the tank's threat (using Omen).
So my question is how do you keep agro under control with more damage? I have no problem topping the damage charts unless I group with a good mage or hunter, even then it depends on the instance.
Does more damage just help with saving mana since you cant spam SB as much?
http://www.wowarmory.com/character-sheet.xml?r=Aerie+Peak&n=Carnus