Last week I tried to swap the neck on my squier p with my squier's Jazz neck. The neck on the p is so badly warped that is not worth it to have it repaired and i like the sound of p basses anyways. Well, when I screwed the neck into the pocked and I installed the strings, I noticed the action was way too high, so I tried again but not matter how many times I tried, everytime I screwed the neck into the pocked the strings always ended way to far from the fretboard. I finally gave up and I've realized that I've should have left the jazz the way it was, since it played and sounded pretty decent. I've decide I'll bolt the jazz neck back to the jazz body but I am afraid I'll end up in the same situation than before with the action way too high. I dont know much about bass repairs and I really have no time to go to the shop. How can I assure proper string alignment when I reinstall the neck on the jazz bass?