I rerolled arcane as it is known for now as the best DPS spec in the game according to simulations and reviews from top notch mages.
Now i have my gear changed according to the forums with the haste soft cap>mastery etc.
i tested rotation and CDs with my own buffs ONLY and i did aroun 72~75 which i found good and i thought that i will be able to get more DPS on the raid fights since i will be having raid buffs/flasks/food.
surprisingly i made LESS than the dummy on the fights.
DPS respectively was:
Blade lord = 67k
Galaron = 60k
Wind lord = 70k and 74k
Amber shaper = 78k
Shekzeer = 68k