Not even past the 30 minute mark yet... Sorry, J bass. Edit* 7/1/2016 Here's a sound clip of a 30 second funky fretless-utilizing groove that I made up. It's a single take, don't hate. Gear: fretless Fender MiM Jazz Deluxe (2005), Markbass Compressore, and a Tech 21 SansAmp Bass Driver DI into a crappy Presonus interface. FretlessFunk.wav
I'm not certain "transformed" is the right word. Think more... "mutated" or "altered"... Recalibrated? I play flats on this bass, so it's actually already in a playable state and sounds alarmingly good. But I am not a surgeon, and welp... She be ugly, to say the least. I'm still deciding whether or not to laminate it with something.
Thankfully, I see you were joking on that point. Some wood filler and then some sort of coating over the whole thing and it should be awesome!
Jokes aside, it's somehow the best sounding fretless I've ever played, despite looking like a homeless person raided it to use the frets as nails for his cardboard house. I would also like to add that I've been thinking about doing this for a long time. The bass is a 2005 Fender Mexican Deluxe that I paid 500 for in '05. It's been my main practice bass since I got it. It's my most comfortable instrument and I love the neck, so I figured rather than try to switch to fretless with a neck I don't like already, why not make the switch with a tried and true friend. It was a risk, but it worked out beautifully (sound wise). Later today I will post some sound clips. It has some seriously classy mwahh oozing out already.
Use CA glue to coat that fingerboard. I found epoxy to be to difficult to work with. CA builds very slow but epoxy is applied in one thick coat. I'm working on a clients fretless and have 30 coats of CA glue on it. Take the time to fill the fret slots with a wood veneer too. It's all about the sanding and levelling! My finishes look like glass.
Not sure what you are using, but I think TI flats sound amazing on a fretless. At least they do on my 78 P (rosewood board).
As much as I want a great finish, do you have any suggestions for cleaning up the wood filler a little bit? Towards the 19th fret, I don't think I can do much, because there was a bit of chipping, but after about the 16th fret there was almost no chipping, so I'd like to get it more uniform looking. I was worried about over sanding it, because I don't know much about how that might screw up the intonation or something. Funny enough, these are D'Addario Chromes, which I would have given a 7/10 tonally if you had asked me pre-defret. However, now that there is no metal for them to clank and buzz against (they have a very undesirable metal on metal tone to my ear) they sound magical. I've noticed through EQing for the past few hours while I play, that mids and low mids seem to produce the most pleasings mwah, and these strings are very mid forward.
You could go to a lot of work patching up the chips. But, I think tthat by the time you sand the fingerboard smooth, a lot of the chip depth would be minimal. Just be sure to fill the slots entirely with the filler you're using, ootherwise the neck may become unstable. A few coats of super glue or epoxy (your choice) would strengthen the neck and might possibly fill in the chipping. There's heaps of info in this forum on fretless levelling. Is this your first defret? I think it's awesome you're so motivated/influenced by the documentary btw.