As vedaras said it does depend on what you want to do with them but if they are going to be spear wielding slaves (pretty decent damage) i would recommend female trappers instead of male ones due to higher DR and DT
So you can levelup slaves?
Poor skills? If i remember correctly everytime a slave or merc levels up it gets +5% to its skills, if they had that kind of hp their melee skill would have been over 150%.
So you can levelup slaves? I was always told that thing is broken... and you got wakizashi? Are they back in game?
Meh my female trappers love aiming for eyes/legs often enough i would say once every 5-7 attacks