When I set the intonation I get it to the point. It's in pitch but it will fluctuating between sharp and flat while I let it ring out. Is that normal? I'm using the tuner that's in my Vox StompLab IB. If I use harmonics it seems to hold it perfect. it's in tune all the way down neck. With my OCD I keep wondering why? Should I buy a separate tuner pedal or a plug in tuner to check it? String height and relief are perfect. Could this have to do with pickup height. I've set everything up to factory specs. Someone told me that it's normal for a bass to do this. I've been doing my setups for a while. And when I bought my Jackson brand new it was all out of whack. I got it and had to set it up because it was off.