I have a Washburn Taurus Fretless and the fingerboard is a bit warn from strings. I just bought this used so I plan on sanding the fingerboard a bit and oil it up. All I have is Dunlop lemon oil but I was thinking a clearer oil would be better for the light ebony fretboard (fretlessboard?). Can some recommend the clearest oil that's protects the best? Rock on!