I have a (untill now) mint condition vintage Gibson G-3. I think it has about $1700 in resale give or take. and I think I just messed up my fretboard It's a maple fretboard and I have this cleaner for it. I rubbed it onto the board as I've done countless times before and I was letting it sit for a few seconds while I put the cleaner on the body of the bass. I was wiping down the body and I got called upstairs to go out to eat. I got home and looked at my fretboard and instantely noticed that something was SERIOUSLY wrong. all the places where the cleaner had goten past the finish and touched the wood it turned it a dark grey color! So I read the back of the bottle and it says 'Do not use on Maple Fretboards'. I'd used it dozens of times before and it's done nothing but good but this time I forgot to wipe it off right away and I'm worried that I may have caused irreversable damage to it. I rubbed it down as hard as I could 'till the thing was hot to be sure that all the cleaner was off... and I don't think there's much else I can do Is there???????????? PLEASE GOD TELL ME THAT THERES SOMETHING I CAN DO!