Even once the scales are gone, real snakeskins will have quite a bit of texture. No big deal. I finish my skins with multiple coats of semi gloss polyurethane in line with the grain of the scales (grip to tip). I use a gloss or semi gloss so the skins look a bit more 'alive' on the bow. Like Pearlie, I go over the edge of the skins, and glue done any lifty bits with thin CA glue. They're originally applied with TB2 or TB3.