Originally Posted by
Iz_Lemon
TBH that opener is pretty much what I do (assuming you precast suiton, hope you aren't doing it the same GCD as trick attack). I have similar gear to you and my overall fight dps for a1s is usually mid to high 900s. Seems like your in fight rotation is what's letting you down, as your opener is fine, A1S requires a bit of weaving to nail those positionals. Don't be lazy and just stay where you are as the boss turns. Move with the boss's turns if required. Do trick attack as soon as it's up. Reapply huton during jumps so you're not forced to do more armor crushes than necessary.
You are being out-dps'd by a tank, something isn't right there. You say you're never able to do AE, so maybe maintaining huton is an issue and doing huton during jumps might help a bit.