I started to play in subtlety yesterday, and I want to ask you guys are there any stat cap? For example X% of mastery etc. If yes, then can you tell me how much of each stat should I have? Thanks a lot.

Hello, I am currently trying to raise my dps as a subtlety rogue, usually it lays around the 25-30k but it seems like my regular melee attacks does way more damage than any of my abilities. which doesnt seem right?
 
 
I am currently mostly pvp geared for assasination.
 
 
here is my armory :http://eu.battle.net/wow/en/character/grim-batol/Isendier/advanced
log is in the comments.
 
 
I hope that i posted this the "right" place and that someone out there can help me
 
-Isendier