Copied from Technique This has been driving me nuts too. I have a MIM Fretless Jazz, and the new Fender Bassman 100 amp. I can kind of get the sound on the D sting at the 12th fret and above> Lowering the other strings just causes a buzz and tightening the truss rod causes the 5th and below "frets" to buzz. I have tried Fender tapewound strings, which in general I like the sound and feel of (but no mwah) and D'Addario Flatwound Cromes, but no luck. Steve Lawson also gets this tone, but it sounds to me to be all over the neck, not just the 12th fret and above. Does it have anything to do with sting tension? I'm using 45-100. I get the feeling that everybody gets this tone except me, poor me I know. BTW Steve I got your CD and it sounds great. If I listen hard I think I can guess what bass you are using. I think the sound I am after comes out of your six sting, I also think I hear the 5 sting with fretless slides but no mwah on it.