Could someone characterize what ebony's tone would be like as a fretboard? Usually ebony is used on fretless basses but what about a regular old fretted bass? 1)Would it be closer to maple, rosewood or pau ferro? 2)How come it's not as popular as rosewood as a fretboard? 3)Would it's affect on the tone be pretty subtle? I've always found that the tonal difference between the different fretboard woods to really be negligable. Does anyone feel different?