A random thought, but would you be able to boost dragoon dps if you had them working in unison? The idea is to have a IDC4> TTT4> TTT4 rotation, where all buffed dots from chaos thrust tick, and immediate damage from the TTT4 combo is available. The issue to pull off double TTT4 here is the fact that disembowel would fall off.

This would be where the 2nd dragoon comes in. By starting with a TTT4 combo, their disembowel would come later, resulting in it staying refreshed for the first dragoon's TTT4 combo.

H -> IDC4 -> P -> TTT4 -> TTT4 -> Repeat
H -> TTT4 -> P -> IDC4 ->TTT4 -> Repeat

*excuse my first post of the forum