What about using,instead the classic ebony or rosewood,something in the wenge-padouk-bubinga range as fingerboard on fretless basses? I mean ,eventually,on budget repairs,wich means the instrument itself is not that worthy of investing,or the owner cannot afford ebony! And,what about the open pores on wenge-padouk,wich come out on a sanded surface? What's the sealing method? Thank you!