A few other threads got me thinking about this. What makes a jazz, a jazz, and a P, a P? Is it the Jazz bass neck, the Jazz bass body, or the Jazz bass pickups? Is it the P bass neck, the P bass body, or the P bass pickup? What identifies it as a J or a P? Or is it the sum of its parts? Would a P body with Jazz pickups and a Jazz neck be a Jazz? Would a Jazz body with a P pickup and a P neck be a P bass? Thinking about it makes me go crosseyed.