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Originally Posted by JonnyAngle  Then how do I know if my neck is warped? I think I have a ski jump, but don't know how to make certain. |
I had the infamous "ski jump" condition on my old Fender AV62RI Jazz bass. Here's how to check...
With all strings on and up to tune, and the truss rod tightened up to where it should be, use a straight edge or sight down the neck from the heal end. Right where the neck leaves the body is where "ski jump" happens. Where the neck is attached to the body it'll be dead straight, but where it leaves the body there's the possibility of a slight bend, almost like it's hinged on that spot. The vast majority of neck do NOT have this condition, but over time just a few can develop this condition. And that's what is called "ski jump".
My luthier fixed this on my bass by (1) removing about 6 frets from the heel end (2) planning down the neck at that spot (3) replacing the frets (4) giving all frets a level job. It absolutely fixed the problem, and the fix is most likely permanent.
