Ever since I got my Marleaux Consat, I use it for the vast majority of shows primarily because it's lighter and more comfortable. My Warwick Thumb BO 6 (1999 model) has been relegated very much to secondary status, which is a shame because it's got an incredible tone and I love the asethetics. I have no intention of selling the Warwick, ever. It means too much to me, and along with my Stingray and Marleaux will be the 3 basses that I keep until the end of time. I do however want to get a fretless, so I figured - if I de-fret the Thumb, would that be a good idea? I'd start using it more, that's for sure. Of course I'd take it to a reputable luthier to carry out the job, and I don't mind it being a lined fretless at all, but I have some questions: 1. Fretless Warwicks tend to have ebony fingerboards from what I see, while fretted ones have wenge. Mine has wenge, of course - would that be a problem? I use rounds, could that end up damaging the fingerboard? I'm not a fan of flats I have to say. 2. What material would be used to fill in the fret gaps? Would this have any effect on the stability of the neck? Anyone done this before? Share your stories and advice!