its what ive always done. always used a deer antler or a bone to burnish the back, the belly, the sides. lately, once i get a bow tillered. i string it up backwards lightly. so it has a slight bend backwards. burnish the belly real good, take the string off then burnish the back. i personally think it helps. if you lightly grease your bow after burnishing i believe it is protected from dampness. now mind you its not as good as spraying ureathane on it or something but i like mine all natural, so i burnish grease, and warm my bow by a camp fire from time to time. i think that carbon helps it too. i know water will bead up on it for quite awhile afterwards if it rains or is foggy out.Tony