I would advise against modifying any Yamaha Mk 1s. They are so well built and constructed that changing the fingerboard will decrease the value and probably the playability. Just save up for a JP 1 if you want ebony or be happy with a rosewood. All Yamaha MK 1s have fender style string spacing, if you don't like that then you won't like Yamahas, take a look at the Ibanez Prestige series . all made in Japan and have tight string spacing for smaller hands.