I'm thinking of de-fretting one of my basses. The reason I didn't search for older threads is because I already know how to de-fret my bass. My dilema is that I have a pretty crappy 4 string(the subject of defretting) and my main 5er. The 4 has a SD Quarter Pounder P pup and a badass 2 bridge. It also has the stock J pup. I don't know how the SD and the bridge will affect the fretless tone. Any advice? I guess what I'm thinking is that the pup and the bridge are supposed to make the bass punchier and have more attack. Both things I don't associate with a fretless. What do you guys think?