I recently acquired a used Bianchi Leather 5BHL holster with a shiny black finish. However, there are several scratches and areas of wear that goes down to the bare leather. It is not basketweave if that makes a difference. What is the best way of renewing the finish on this holster? Should I re-dye it completely, or can I just use black shoe polish? Needless to say, this is my first black leather holster. -Ed.