Originally Posted by: aschlemanI assumed we were talking about a basic wire job. Normally 4-wire humbuckers are only used in applications that you would like to split the humbucker.

Unfortunately, that's true. People mostly use four wire humbuckers for coil splitting when there is so much more than can be done with them.

I have a guitar that has two single coils and a 4 wire humbucker. The single coils are controlled by on/off/on switches and the humbucker is controlled by a 6 throw, 4 pole rotary switch.

I haven't counted, but this configuration gives me probably 30-40 or maybe more distinct different tones.

And yes, I did the wiring myself.

The only complaint I have is that the humbucker is a Seymour Duncan.