The opener that i've eventually come up with allows me to spike to ~800 dps if its done right just on a dummy without a party or food (i110 weapon)

Huton (20s before pull ideally) > Suiton > Spinning Edge > Blood for Blood > Gust Slash > Internal Release > Dancing Edge > Dex pot > Spinning Edge > Trick Attack > Shadow Fang > Kassatsu > Mutilate > Raiton > Spinning Edge > Mug > Gust Slash > Jugulate > Aeolian Edge.

i realize this is longer than most openers, but its the only one i've made/found that actually involves potions and seems to work quite well for now, plus it doesn't waste time on b4b/IR by using them pre-pull like most do.