Seymour Duncan Phat Cat Set Nickel Electric Guitar Electronics A set of Phat Cats offers true P-90 growl and bite in any humbucker equipped guitar without modifications. Want the focused mid bite and unique attack of a P-90, but have an instrument routed for humbuckers? You need a Phat Cat Set. The bridge is wound to give you chords with lots of bright harmonics, and solos that have sharp single coil cut