Hey guys.. I have a warwick corvette fretless bass. I've actually not had it for very long, little over a month. I've noticed that on my fretboard ( ebony ) there are a few spots where it looks as if the darker would color has rubbed off a little and a much lighter brown is kinda 'shining' through. It's only occured in a few spots ( so far ), and they are in the shape of my finger ( when it's pressed down). Is it just normal wear, or a coat they put on the wood that is wearing off.. Or..?