you can get speed capped without cuttthroat, pretty much any nightblade build manages this without 5x Cuttthroat
i really really hopes Zantai reconsiders 
outside belt there exist only 2 items for ele->pierce conversion for melee/caster pierce lulz, meanwhile ranged has a gun and multiple 2h ranged to mess around with, aside from belt, shoulders and ring
it will effectively end any pierce conversion approach as you can only reach 55% conversion on non ranged builds… which seems overkill big time (on conversions where you already lose dot dmg)… just to reel in a few 