I've been able to further optimize my layout even since this video and am pumping much better DPS. Machinist is pretty good for our BM Hunter style. I was hoping Summoner would be similar because it has a pet, but it hasn't parsed the same kind of numbers yet.

I've gotten up to Floor 120 so far, but my dps/gear for this dungeon is a little low. You need to work up the Aetherpool arm and armor, it goes up to 99, which I'm getting close to now and should make the whole thing much more enjoyable.