After much deliberation, I decided to take a plunge and put together my own Warmoth 'Jaco-ish' Bass. Last year, I got a '75 Jazz, and in the process of restoring it ended up with a pair of good sounding, but uknown pups and few other bits and pieces that were just begging for a nice body and a neck. About a 6 weeks ago, a saw a nice, all-wenge J fretless neck in Warmoth's Thrift shop and went for it. A couple of weeks ago, a nice alder body with qulited maple top popped up in the thrift shop. Folks at FenderForum recommended I pair wenge neck with an alder body, so I went for it. I also got a Gotoh 206 bridge, pots and jack, string retainer and some screws from Warmoth. I had a Fender Limited Edition neck plate with screws already, and a set of HipShot Ultralights for a Jazz. It took me about 8 hours of total work time to put this bass together. All parts fitted PERFECTLY - a testament to Warmoth's fantastic quality. Neck pocket was absolutely perfect, all holes were drilled where they were supposed to be. Biggest jobs were shielding and cutting the nut, something I did for the first time, and without having proper tools. For shielding, I used 4 coats StewMac's Shielding Paint. Over that, I put J shielding plates to which I soldered ground wires. I screwed in all ground wires to the side of the electronics cavity, then took one wire to the main ground. Bass is VERY quiet with either pup soloed, treble on full, and my Carvin R1000 on full volume, even when I stand right next to a fluorescent light fixture. I had some trouble with the pups, because they were a bit too big for the routes. When I bought the '75 Jazz, these pups were installed without the covers for the same reason. I had a couple of Fender J pickup covers, so I 'shaved' them all around (the invisible part) until they fit. Soldering the electronics was very easy - something else I did for the 1st time. I used the diagram at Mr.GearHead site, and it works perfectly. Warmoth supplied me with CTS pots, dome covers, jack and the cap. Gotoh 206 fit in perfectly and was easy to adjust. My biggest concern was the nut. I read all I could on the subject, and everyone said that it is a tricky operation, especially on a fretless. I used a triangle file to start the groves, then a Dremel with 1mm cutting disc to shape them to size. Strangely enough - it worked! I took measurments off of my Rick Turner Fretless which is also 1.5" at the nut. And there you have it - after a few evenings, I have a great sounding, very playable fretless Jazz. Neck pup (wish I knew what it was) is very punchy and full-sounding, while the bridge pup gives that typical Jaco sound. There are tons of mwah, probably thanks to that lovely all-wenge neck and roundwood strings. In terms of looks, blue quilted maple top and dark brown wenge don't match too well, but I am not worried about that. I bought (very cheaply) a black JP90 body with a Fender bound maple neck with black blocks, so I might pair this fretless neck with a black body, and Fender neck with Warmoth blue body.