Dragoons: A Rotation Reborn

[Noxotic]

So I need help maximizing damage on T7. I've been fluctuating between 310-350 DPS with a good round of 390 (wiped at 60%). I'm currently i105 w/ i110 Liberator, i110 Astrum pants, i110 soldiery acc and then i100 soldiery clothes+Weathered gloam ring. I start off with HT->BFB->ID->IR->Dis->Sweep->PS->CT->Jump->Phleb->SSD->TT->VT->LS->FT and then do the rest of the rotation regularly popping cooldowns immediately except for life surge (save for BFB). I save Dragonfire Dive to hit Melusine and any add that pops up (Renaud that spawned next to Melu that liter picked up/Lamia gets close enough to Melu), but after a certain point, it just kinda drops off. I know the fight is RNG dependent and it's never guarenteed, but I just want some tips from experienced DRGs as this is the farthest turn I'm at so far. Always room for improvement haha.