Some of my suggestions:
1. Swap the dot/debuff of Phlembotomize and Disembowel.
(This would help with the initial rotation issue of the mob moving around and making them miss HT)
This also allows for their to be a BENEFIT for bring x2 DRG. Meaning one drg doesn't have to waste a GCD putting up phlembotomize. (Kind of like monk w/ dragon kick or ninja w/ the slashing debuff)
2. Have Feint become and OFF GCD skill on Perfect Balance timer, grants an impulse rush buff that waves positionals for 7 seconds
3. Have Keen Flurry grant the trait "Dragon Skin" (while drg) allowing them to absorb 5% of magic damage taken as hp.
4. Make Piercing Talon off GCD still costs some TP.
5. Have Chaos thrust "Crit procs" grant the drg a chance to throw a free piercing talon.
Any of the above would have a nice beneficial effect on DRG's play style. Not saying implement all of these, but some of them would be pretty helpful to bring dragoon up to par.