I have a light natural finish Spector euro 4 LX. I bought it second hand, and due to my impatience in buying didnt notice it had a slight stain near the bridge. A friend says it will just be bleaching from sunlight, but if you hold the body up in the light you can see the stain on top of the wood. Also, on the body where your arm rests while playing, there is a dirty mark, probably due to sweat etc. What would be the best way to get this out. Ive got lemon oil here, and some planet waves fingerboard hydrate which seemed to draw alot of crap out of my fretboard, im worried about using this though, just in case. Any other options? Thanks in advance.