This is on my Peavey Axcelerator 6. On my "A" string - I got the intonation set up almost perfect between the open, harmonic, and 12th fret "A" note. But when I fret the "D" at the 5th fret it is way out of tune. This happens on some other notes as well on some other strings, and on some of the other strings at the 5th fret (but not all of them). Maybe I need new strings. I bought the bass used and I have a feeling that the strings are original. But I absolutely adore the feel and sound of them!