Hi, I had a 1979 Fender Precision bass for few months already and I didn't realized that the neck of this bass is slimmer than few of my other P bass until today. I noticed that the neck is quite friendly to me since the beginning but didn't pay any attention to it until I measured it. However, it is slightly wider than the Jazz. Wonder if Fender have the slimmer neck on other production as well or if they go back to the original after 1979. I don't have the newer model than 1979 of P bass so no idea. Thanks for your input.