I have a Sterling by Music Man SUB fretless - a conversion from a fretted (by having a fretless fingerboard installed). Sounds amazing with the Retrovibe preamp and Nordstrand pickup.
Went in there many moons ago, and went to go upstairs - where they kept the 'nice' stuff. They weren't keen on me doing so. At the time I had Precision number 0189 and a 66 slab at home. Haven't bothered with them since, stuck up bell3nds.