I have three Boyd's laminated thumbhole stocks with the standard satin finish. I have done some file work in the thumb area to make for a better reach to the trigger and also flattened the bottom of the stocks fore end in a mill to accommodate a bag rider. Question: Does anyone know what type of finish is on Boyd's stocks? I'm guessing polyurethane. Would it be possible to just touch up the sanded areas or do I need to sand and spray finish the entire stock? It doesn't have to be perfect, just better than it is now.