If you want this removeable and plan on using a leather grip on it, you could use body putty or fiberglass putty from the automotive world, just use a release agent or plastic wrap, which is put over the existing grip, put on latex gloves, mixup and add the putty to your palm, grab the bow grip, smooth things out with your other hand and hold it til it sets, .. about 5 min...remove your hand, take off the now hardened chunk of putty, sand, taking care to feather the edges, spray both sides with a clear or any color sealer(paint)....apply it to your bow with a low temp hot glue, which makes it easily removeable, and cover with a leather grip.... easy.. simple and cheap! and it will fit both your hand and bow perfectly.