Hillbilly61, I do like Eric said with the cabinet scraper, with good success. You can remove the shellac without violating the growth ring. I also like the spar urethane as Jawge states. Experimented with automotive finish, that stuff is tough. It is what I coated that little Pecan bow my Grandson was shooting at the Pre- spring shoot.
I rounded the edges on that little osage bow I had at the shoot, the one I brought as a back up bow... It has better than a thousand arrows across the rest and shows no signs of giving out.