Hi. I own a Mexican Fender Jazz Bass that I converted to fretless, and just recently acquired a G&L ASAT fretless in a trade. I'm trying to decide which one to keep. Both are strung with flatwound strings, so it's been fairly easy to compare their tones directly. The ASAT, to my ear, is much closer to the sound of an actual upright bass -- lots of thump behind the notes, lots of fundamental and clarity, not such a huge amount of singing "mwah" sound. The Fender is quite the opposite -- less fundamental clarity, less bass freq's, less fundamental, but singing "mwah" for days. So what do y'all value in a fretless? I really only want to keep one of these, but choosing is rough. . . . Also, is there always a trade-off between "mwah" and upright-ness when choosing a fretless?