P basses were an epiphany for me. I struggled to hear myself the way I wanted to in a band mix with various jazz's for years, then I bought a 50's Classic. Problem solved. The split coil just seems to inhabit all the right frequency ranges that singles had trouble with (particularly against two half stacks). While the J usually cut it in a 3 piece, it lacked when another instrument was tossed in the mix. That has never been a problem for me with a precision. Now I'm down to temporarily using a Geddy until my P arrives and I long for the comfy blanket of mids and bottom that a p provides in any mix.