With the hardware still in limbo, I caved and added a tone control. But, it is a push pull, so pulling it up takes it out of the circuit. Used 2 192p Sprague Pacer polyester film .022 caps in series to make a 0.011 tone cap. I'm trying to maximize and move down the resonant peak (to the upper mids) with the tone control dialed all the way down, and around 0.01 is the magic cap value for that, IME.
Swapped out the treble bleed when I attached the tone control. Used a .001 Sprague 192p cap there to be consistent, for no real reason other than that it is.
So volume down is bridge, volume up is neck; mini toggle is bridge humucker from down to up series/split/parallel, and the tone is regular tone down, and out of the circuit up.
Also, added several coats of MG Super Shield nickel coating to the control cavity, and treated the cover as well with some nickel/copper Faraday tape. It took the entire small 20g bottle to adequately cover the control cavity. But there's no measurable resistance in there now. I am not sure shielding the pickup cavities would do any good