Hi all, this is my first post here. I just picked up a used Martin Custom Bushmaster Longbow which looks pretty well used. It has glass on the front/back of the limbs which looks great. However the sides of the limbs seem a bit rough and dry in some spots, like whatever finish it had from the factory is gone. It's noticeable halfway down the limbs and worse toward the tips. Does anyone know what type of finish this bow had originally (e.g. varnish or just oil)? Also I'm wondering how to touch it up a bit. I might lightly sand the sides and tips and then use some Tru-oil. Not sure if I'd need to restain the wood or not (after sanding). So, I'm looking for ideas how to refinish it, and also what *not* to do so I don't mess anything up! I'd rather not touch the glass since that looks pretty good. Thanks.