After thinking about openers because of this
thread, I did the maths for BS and the AB DoT separately and added them to my earlier post.
If you're too lazy to page-back:
Backstab (No BS)
- Damage = 2597, DPE = 519.4
Acid Blade DoT
- Damage = 2838, DPE = 189.2
This puts the AB DoT slightly above Lacerate on DPE, which means that it is always worth attempting to get more Acid Blades into our rotation (only really valid during opener and after Cloak>HS where it is possible to use BS after the HS without AB and not lose the ArPen buff)