I was reading an article in Aprils-Rifle Shooter,"Dressing up your stock. Since I'm not to much of a 'smith'(only do what I know I can't screw up). Looking for a little advise on a finish sealer. Now D.J. Marshall (who made it simple enough) advised using urathane for the final sealer. Couldn't help but wonder if anything else could be used, like an interior/exterior polyurathane? Any/all suggestions would be helpful.