My wiring knowledge is very basic and I drafted an idea for a guitar with 5 pickups that can be in phase, out of phase, series, parallel, split and all have individual on/off switches. It would have one volume pot and a bass cut acting as the tone knob. I would be grateful to anyone willing to look at my diagram to see if anything wouldn't work. It uses Seymour Duncan wire colors. https://photos.app.goo.gl/ZYCg2wLRnHDGDXnc8