I currently have 2 fretless basses that are both ebony and I've had an Ebanol one in the past (a GWB35). Tonally, who can say? They're all different basses so have their own intrinsic tone, whether that's down to the fingerboard material, who knows, but I doubt it (YMMV)? What I will say is that Ebanol seems to mark up quicker or is, at least, more obvious (a certain greyness on the wear areas). I also have an EUB that sports a Coform 'board (whatever that is?) that works just fine too.