The difference between the two helmets is actually surprisingly small, so I can see how a custom rule set could potentially make it hard to tell between the two. I’d go ahead and lock in the helmet.
As far as what the optimizer is picking for gear in this build… I checked the simulations and made sure that the rotation is being executed the same way good player are playing. There doesn’t seem to be any problem with the simulation results.
You can do a lot of damage (especially on short fights) by stacking tons of haste/expedient and doing insane burst at the start of the fight with 3x shrouded and exsang followed by another vanish garrote when that one ticks down. But, on any fight that isn’t pretty short, the suggestions we offer by default are going to result in more damage.
For people who do want to build for this style, forcing 3x shrouded suffocation and increasing the value on expedient corruption effects should produce the desired results for gear choices. Once the optimizer is forced to use items with expedient on them, haste will end up being favored more anyway.
@elbrince If you want to post your snapshot id, I can help you set up the optimizer for your particular case.