Couple of more things..

1 - re: switches on the Brian May guitars...

If you're wearing the guitar and looking down at the switches...

Each row runs parallel to the pickups.

Top row - On/Off (the row closer to pickups)
Bottom Row - Phase (the row closer to the edge of the guitar..obviously)

The thing that might be easier to understand about the switches is that each pickup has '2' switches - 1 On/Off and 1 Phase switch per pickup.

I'm likely stating the obvious here - lol

Anyway...for what it's worth

Andrew