Ultimate Dark Hunter Inquisitive- if you have all 3 ultimate prerelease packs you now have 3 Universal Action Points on each toon.
Could you try or consider the following distribution changes?
41 AP Inquisitive
11 AP DWS - Sniper Shot
8 Harper Stance Action Boost + Arty 6 Insightful Damage or Alchemist 4 Battalion Brew
Remaining 23 Action Points in Dark Hunter for Core 4 Sneak Attack Dice on Invisible and Smoke Bomb invisibility
With Shadow Dancer Epic Strike that seems like a big jump in damage, potentially?