Switch configuration: [.ON1:SW1.Middle]

Parallel/Series connectivity tree:

(VR1.1-2 + Bucker.South->) || 
VR1.2-3 || 
(VR2.1-2 + Single.North->) || 
VR2.2-3 || 
(VR3.2-3 + C1)

Notes:
  'Bucker' and 'Single' pickups engaged, wired in parallel
  'Bucker' pickup wired in coil-split mode
  'VR1' potentiometer acts as a volume control for 'Bucker'
  'VR2' potentiometer acts as a volume control for 'Single'
  'VR3' potentiometer acts as a tone control for 'Bucker' and 'Single'
  All pickup coils are wired in-phase
  This configuration is hum-cancelling
Switch configuration: [.ON1:SW1.Rhythm, .ON2:SW1.Rhythm]

Parallel/Series connectivity tree:

(VR2.1-2 + Single.North->) || 
VR2.2-3 || 
(VR3.2-3 + C1)

Notes:
  'Single' is the only engaged pickup
  'VR2' potentiometer acts as a volume control for 'Single'
  'VR3' potentiometer acts as a tone control for 'Single'
  This configuration is NOT hum-cancelling
Switch configuration: [.ON1:SW1.Treble]

Parallel/Series connectivity tree:

(VR1.1-2 + Bucker.South->) || 
VR1.2-3 || 
(VR3.2-3 + C1)

Notes:
  'Bucker' is the only engaged pickup
  'Bucker' pickup wired in coil-split mode
  'VR1' potentiometer acts as a volume control for 'Bucker'
  'VR3' potentiometer acts as a tone control for 'Bucker'
  This configuration is NOT hum-cancelling
Switch configuration: [.ON2:SW1.Middle]

Parallel/Series connectivity tree:

(VR1.1-2 + Bucker.South-> + Bucker.North->) || 
VR1.2-3 || 
(VR2.1-2 + Single.North->) || 
VR2.2-3 || 
(VR3.2-3 + C1)

Notes:
  'Bucker' and 'Single' pickups engaged, wired in parallel
  'Bucker' pickup wired in humbucking mode with series coils
  'VR1' potentiometer acts as a volume control for 'Bucker'
  'VR2' potentiometer acts as a volume control for 'Single'
  'VR3' potentiometer acts as a tone control for 'Bucker' and 'Single'
  All pickup coils are wired in-phase
  This configuration is NOT hum-cancelling
Switch configuration: [.ON2:SW1.Treble]

Parallel/Series connectivity tree:

(VR1.1-2 + Bucker.South-> + Bucker.North->) || 
VR1.2-3 || 
(VR3.2-3 + C1)

Notes:
  'Bucker' is the only engaged pickup
  'Bucker' pickup wired in humbucking mode with series coils
  'VR1' potentiometer acts as a volume control for 'Bucker'
  'VR3' potentiometer acts as a tone control for 'Bucker'
  All pickup coils are wired in-phase
  This configuration is hum-cancelling