I own a J bass, and it's the only bass I've ever owned, so I thought it was weird when I was looking through tech specs and saw that P bass necks were slightly wider than my J neck. Anyone know the original reason for this? They both have identical scale lengths, and essentially identical necks down by the heel, but they're each tapered different up at the nut. The mm stingray 4 is still at the top of my wishlist for the future, but I noticed that its neck width is closer to that of the P bass. What kinds of differences really exist out there between playing a P or J neck?