No harmonic on the fifth fret ?? I changed out PUPs in my Home Spun Nashville Tele. I originally built it 5 years ago, it was my first. [build, not Tele] Last night I put in a different Neck PUP, a MIJ 1990ish [7.6k.] I did other stuff too, moved the Middle to the Bridge and put in a different Middle. [pulled the Fralins for one on the bench] I tune sometimes with the 5th / 7th fret harmonics, well a lot really. I went to do it this morning and there is no harmonic on the 5th fret with the neck PUP, it is there with the other PUPs or a combination of the neck and either the mid of bridge [5 way has bridge in the middle/3 position]. And also it is there with it unplugged, the intonation is set well. The neck cover is grounded to the back of the POT just like before, as is the black wire. WTF?