Weird sounds from fretless
My MIM Fretless jazz gets a strange "woof woof woof" sound on notes above the 12th fret on the E string. It's like an out of phase vibrato. (I'm not sure if I'm describing this right). In any case, it's not a clear note like the other places on the neck or on other strings.
I'm using TI Jazz Flats. It does the same thing with roundwounds, but not nearly as pronounced.