I like the neck on my Jazz Bass, fits my hands better than the Precision. As many players have done, I want to switch necks since I play the Precision more. The Precision is an AmPro, the Jazz an AmStd. Fender made some significant changes, and the AmPros, but both models have "staggered tuners". I'm not sure if they're different in any way or whether that would make a difference. I do know the tuning pegs are shaped differently.
I don't think there'll be a problem with the exchange. Any thoughts on the subject?