Dragoon DPS Question - When to Chaos Thrust?

[Eidolon]

Wierd question.

I'm pretty tight in my cycle. I never miss having my DoT's up, and due to low skillspeed, I have the grace of not clipping into my DoT's so they tend to get full benefit. Phase 1-2 at i121 with jumping on the adds, I'm pulling about 480+ DPS

However, I'm looking at the damage, and I'm wondering if I can optimize for the adds.

Right now, I get about 6 GCD's on the add. That's enough for a full cycle of Chaos Thrust + full cycle of Full Thrust. Or two Full Thrust Cycles. Which one in terms of an average 6 rotation would be higher damage?

Edit-In: This is for T13.