I have begun saving for my next bass, and I have a pretty open list of potentials, among them Curbow and ZON. I dug up the February 1996 issue of Bass Player that has a review of the Curbow Intl Exotic Petite bass. Ive also been to the Curbow website, so Im pretty up to date on what makes up rockwood. Then I decided to check out the Zon website to begin to explore the Zon line. The FAQ briefly describes what goes into the famed phenowood fingerboard. Lo and behold! the material is the same. Check out the details below from the two luthiers websites. I thought this was interesting, since much is made by ZON owners about how great the phenowood fingerboard is, particularly for fretless. It's also germane to the ZON thread started by vacman. robb.