I had a Godin A4 profressionally defretted and set up with a set of TI Jazz Flats. After a day or so I noticed the E string buzzing against the fretboard when fretting at the first and second frets marks. The action was extremely low. The bridge is not adjustible on these basses (Piezo pickup) so I did a truss rod adjustment and took out a little relief on the neck. That fixed the E string problem. What I've been noticing, though, is that at some positions on some strings along the board unless I press really hard on the string I get a buzzing, "mhahhy" note instead of a clear ringing note. I'm not sure what's going on: technique? - I played an SR400 fretless for many months with no such similar issues - strings on that one were Fender flats; strings? - I've heard the TI Jazz Flats are very flexible - too flexible?; technique? - but I'm not doing anything wrong I'm aware of - like I say, never happened with the SR. Set up? Thanks!