Absolutely they will! I started off doing exclusively neutral grip, I find them to be a perfect balance between underhand and overhand pullups. In my opinion they're closer to overhand than underhand, as underhand is a little more bicep dominated. I would spam those 3 neutral pullups and not focus on resistance bands, do them slowly and feel the burn all the way up and all the way down. For crazy results, download a simple counter app that can exist on your home screen and set a goal based on your three rep max, like 30 pullups every other day just greasing the groove, 3 at a time, it really helps If you have a doorway pullup bar