Change Fender JP miniswitch to blend pot?
I have a stock Fender JP 90 that sounds great but I wonder if it would be more versatile and sound even better if I could blend the mix of P and J rather than stock all or nothing with the on-on-on miniswitch for the P and J pups. It seems like replacing the miniswitch with a pot that has a center detent for both on should work but I have no idea what type, if possible, etc. Attached is the wiring diagram, any ideas or suggestions? Thanks.