After I scraped off the outer layers, a dull brown liver-colored stain remains in the gelcoat. I already tried Fiberglass Stain Remover and it just won't get out the last little bit. It's really ugly. Any suggestions short of buffing the gelcoat with an aggressive rubbing compound? It's prime fishing time and I really don't feel like making a project out of this right now. Any quick fixes for now? :?: