Hello guys, I have this jazz bass copy and I'm about to replace the neck to a precision bass neck. so I bought an allpart's precision neck to my bass, but I'm facing a problem. The original jb neck is 21 frets while the pbass one is only 20 frets. The position of the 20th fret of the pbass is placed a little bit down compared to the 20th fret of the jazz bass. Bellow a image to help you guys to understand it. My question is , can I have problems with intonation? What about I place the bridge a little bit down too? The square on the body represents the bridge. I've used MS Paint to draw that thing you guys may laught later I went to a luthier but this guys is asking my kidney to do this job I'm sure I can do it if I'm ok with the positions. Thanks for the help.