OK, my man. You need to read the rules and decide if you can follow them. Not only is this grammatically lazy, you've also added nothing new or interesting to the discussion.
DO NOT, and i repeat, DO NOT use arcane shot if u are rolling MM (Arm Pen Staking) or mainly just MM, because Arance shot is a DPS DOWNER, every time a person uses arcane shot, on average it will bring ur DPS dwon depending on ur stats (Recount wont show this but if u wait u can tell) If u use arance shot, thats one Steady shot, or even a aimed or Chimera shot wasted, which all 3 of them increase DPS (Steady shot Mainly, with Serpant sting attached to the target), even pumping 5 steady shots is better then 7.5 seconds of Glowbol cool down wasted from using arance shot. and the only time u use arcane shot well in MM spec is for PvP purposes only.
Example Rotation (Without Arcane shot)
Blow Cooldowns (Rapid Fire, Kill Command, trinkets, and "Uses'
1. Steady shot (Spam button) 2.Serpants Sting, 3.Silencing shot, 4.aimed shot, 5.chimera shot, then span steady shot until Aimed shot or chimera shot comes back, then once Rapid Fire runs out, use Readiness, then blow Rapid fire and kill command agian, and just keep doing the 5 steps over and over