I have a Fender Blacktop bass with a P-Bass neck. I love the tone but I prefer the J-Bass neck. I have a Jazz neck on my Precision. I want to replace the neck on the Blacktop and found a pretty good price on one but the fretboard is maple. I know the purported differences in tone between rosewood and maple. Has anyone ever switched and how noticeable was the change? I think the maple might complement the humbuckers on the Blacktop. Any ideas? I know it's subjective and I won't know unless I try. Just looking for experiences.