Today I fought a Subtlety Rogue that no matter what I did I could not slow him down. Traps (entrapment), Cocussive Shot(glyphed) and Chimera seemed to have no effect on him. Was he cheating or doing something I havent seen used yet? Up till this point, even the Rogues that spend there game time in arenas I could at least slow them temporarily.
Here is the Rogue
http://us.battle.net/wow/en/character/warsong/Mustaracho/simple
I am currently levelling a rogue and if I don't manage to 1 or 2 shot a hunter he is out my reach quick smart, putting concussive shots on me every 5 seconds and keeping himself safe unless I have access to a Potion of Swiftness and potions are off cooldown. I'm only low level at this stage though (14) and still have lots to learn...
Good luck
D