Here is my feedback on various vitality and bleeding items/concepts and archetypes if you’ve missed it.
But I also like to add one more thing,
Mad Queen Claw ; right now this weapon is overshadowed by Misery in Dervish builds and crushed by Venomblade set in Witch Hunters. It’s specs are not that important when you consider other alternatives. Plus it drops from a real queen 
It has high crit damage and %30 chance on crit proc which are not useful in most acid builds because you hardly reach 2800 OA most of the time.
Same as modifiers. %18 WD on belgothian shears is okay but 40 flat and %25 crit damage on Whirling Death is not much crucial.
My suggestion is; add Markovian Advantage modifier to it, %100 physical converted into acid and some flat along with skill points; so Acid Cadence conduit would have a weapon to use in Blademasters and MQC’s gain DA shred to utilize crit damages. Maybe +1 Occultist instead of blood of dreeg bonusses because making DW Witch Hunter means you use beronath for AA.
So it should have something worthy of it’s name.
And thanks for all the support on GD after all these patches! looking forward to new changes on epic sets. (Don’t forget jewels)