just stepped outside to have a smoke, and got to thinking about different things, basically how i wasnt too fond of fretless basses due to not haveing a point of reference on the neck. and then i realized that if it were lined i would have my reference points, but i really dont like that look. so i had an idea... is there a way to fill the grain on a neck prior to finishing that would prevent it from accepting a kind of stain or finish, and if there is a way to pre-fill the grain with something, is there a way to precisely control where that filler goes via masking? i was thinking of taking a relatively lighter dark wood board, and masking off the fret area (or where the actaul fret wire would normally be) so that when the stain is applied, it would not appear, or appear lighter in the given area? thus a point of reference without the run of the mill look of white on dark wood anyone have a clue what im thinking?