Just stick with the glue you can reverse and clean up. It works well and lasts just fine. I tried contact adhesive and it was to soft after setting. The hide glue was just right. The crubber is a consumable and you’ll want to be able to change it easily.
Does using liquid hide glue in a bottle or heated hide glue from flakes matter? We can glue the crubber your way in the vise workshop.