IM running revolver knife toughness health and stamina curios with meta blessings etc

I have 4 points left, suggest me something. I dont do much weakspot and knife is only for trash, revolver is for everything tankier (can 4 shot crushers).
Most of the time i just go with 5 crit chance node, regen health tougzness and wounds on medpack node and regen grenades But im open for suggestions. I dont need more damage