Yakuza 2 ghosting problem

[PleasantChimera]

hey I've been having this sort of annoying issue with yakuza 2 with ghosting, the wiki tells me to enable alpha, and alpha stencil among other things but for some reason alpha isnt in the advanced hw hacks and alpha stencil is completely grayed out no matter what i do. Pic of the settings attached. Is there anything im doing wrong here?     

[jesalvein]

start by updating to latest dev build