Hey all, I keep reading about putting a coat of poly, or epoxy on fretboards after make them fretless. MY question is this, Why do you put epoxy over the fretboard? I am asking this question because a friend of mine (who was a pro back in the day) loves his defretted G&L 2000 maple neck/board. He pulled the frets filled with wood filler, and never added any additional coats over the neck. Do you need to coat with poly/epoxy or not? Thanks for any insight!