I brought my Fireman to the Ibanez Custom Shop today for some wiring experiments. Alex, the tech who helped me, used clip-on cables (shown in the photo above) to test out the wiring before soldering the wires to the switch. This guitar has two humbuckers and one hum-cancelling single-coil, so there are a lot of wiring options for the 5-way switch, and also I wanted to try some experiments with the tone control. After trying a couple different wiring possibilities (both on my last tour, and more recently in the studio), I settled on this wiring for the switch:

1. Bridge         2. Bridge (inner coil) + Middle         3. Bridge + Neck         4.Neck (inner coil) + Middle         5. Neck

This is similar wiring to my PGM guitars, but the middle position is different. The usual middle position is the middle single coil pickup by itself. But I found that I prefer the "Bridge + Neck" humbuckers combined. It's a very Les Paul kind of sound. And I still can get nice glassy clean tones from positions 2. and 4.

The other new thing is that the Tone control is only wired to the Bridge pickup.