Can someone give me a DRG skill rotation?

[Marka]

while waiting, prepare to start:
Power Surge, Invigorate, Quelling Strike (QS)

1. Jump
2. Javelin Throw
3. Vorpal Thrust (behind) > Impulse Drive (side) > Keen Flurry > Chaos Thrust
4. Javelin Throw
5. True Thrust (front) > Leg Sweep > B4B, blindside, QS (if up again) > Doomspike (behind)
6. Javelin Throw
7. Vorpal Thrust (behind) > Impulse Drive (side) > Chaos Thrust
8. Javelin Throw
9. True Thrust (front) > Heavy Thrust
10. Vorpal Thrust (behind) > Impulse Drive (side) > Rings of Talon

... rinse repeat ... as abilities go back up.
- use Keen with Chaos
- use buffs with Doom
- throw Javelin after big WS animation/Jump (unless in fight that punish animation lock)
- use Full Thrust, Feint > Disembowel if miss anything
- use Chameleon, Elusive Jump as needed
- use Jump, Invigorate when up

I see that you use your Chaos Thrust combo before your buff'd Doomspike Combo. Is there a reasoning behind using ur Chaos Thrust combo first? I'm used to putting b4b, blindside and QS on Cooldown as fast as i can so i open up with that combo first. New dragoon here so it's rather confusing.