Title says it all. Building a new 4 string, have Fender 60's CS P pickups in there that I love. Originally put in a Nordstrand dual coil, nothing but probs - It's phase is backwards, and blend pots, both 250K and 500K don't do a smooth fade between the two. So the Nordy is going back, but I need a replacement . Passive. Bart BC size. Thanks!