Spec:

8/31/2 Is the most common spec, you can change the 1 point in Trueshot aura to Rapid Killing or Silenceing Shot if your raid dont need the buff.

7/31/3 Gives you abit more haste to work with if you are close to reaching another haste plateau.

Glyphs:

Prime
Glyph of Steady Shot
Glyph of Arcane Shot
Glyph of Rapid Fire or Chimera Shot (see haste plateaus)

Major
Glyph of Deterence
Glyph of Trap Launcher
Glyph of Raptor Strike

Minor
Glyph of Mend Pet
Glyph of Feign Death
Glyph of Aspect of the Pack

Stats:

Basicly same as surv, haste is abit more atractive, but crit is still better.

Agility
Hit rating (up to 8%)
Crit
Haste (up to XXX, see rotations)
Mastery

Rotation:

First of all you want to make sure that you allways have the Improved Steady Shot buff up, so you allways want to fire 2 or more steady shots in a row (use an addon to monitor it like NTK or power auras). 2nd you allways want your chimera shot on Cooldown (10 sec cd, 9 when glyphed), so the rotation is all focused around this (except in the carefull aim phase).

Carefull Aim Phase (100-80% hp)

When you are under haste effects such as Rapid Fire or heroism during this phase you want to use Cobra Shot to refresh Serpent sting just before it runs out and use Steady Shots to regen focus. All your focus should be spent on casting Aimed Shot Since the critical strike % is so high during this phase but remember to keep the improved steady shot buff up. When the haste effect drops revert back to refreshing Serpent Sting with Chimera Shot but do it as late as u can.

None Carefull Aim phase (80-0% hp)

In this phase you basicly want to use Arcane Shot shot as your focus dump, Steady Shot to regen focus and Chimera Shot on cooldown. When you are under haste effects here you want to return back to useing Aimed Shot as your focus dump (if your movement allows it) but still use Chimera Shots on cooldown.

Haste Plateaus:

You dont want to necessary fire the shots in this order, but u basicly just have to keep an eye on your focus and find out whats best. The glyph im talking about is ofc the Glyph of Chimera Shot (Note that all of these calculations assume that you have the 10% attack speed raid buff, Improved Steady Shot up, as well as 2/3 in the Pathing talent.) All the colors are just for you billy incase you want to lvl a real toon.

Rotation 1.

4 Steady Shots, 2 Arcane Shots, 1 Chimera Shot.
No T11, no glyph: Nothing
With T11, no glyph: Nothing
No T11, with glyph: 428 Haste (3.335%)
With T11, and glyph: Nothing

Rotation 2.

4 Steady Shots, 3 Arcane Shots, 1 Chimera Shot.
No T11, no glyph: 428 Haste (3.335%)
With T11, no glyph: Nothing
No T11, with glyph: 3074 Haste (24.002%)
With T11, and glyph: 1486 Haste (11.602%)

Rotation 3.

5 Steady Shots, 3 Arcane Shots, 1 Chimera Shot.
No T11, no glyph: 3736 Haste (29.169%)
With T11, no glyph: 2082 Haste (16.252%)
No T11, with glyph: 7044 Haste (55.003%)
With T11, and glyph: 5059 Haste (39.502%)

Video from Lumiya expaning rotations

Good Luck, Have Fun! ^^

9 different font colours and 1 smiley. Gj again Tom!