A friend of mine has a Les Paul with a very interesting set up for the Pots.
Both volume pots are push/pull, coil tapping the respective pickup when pulled.
The humbuckers are wired so that when both are coil tapped, the coils being tapped are of opposite polarities.
Both the knobs are TBX tones (I think).They cut treble when turned to one side, bass on the other, they do nothing when in the middle.
Interesting variety of sounds too.