Hi all, I'm searching for a method to calculate the tone filter of pickups for an epiphone regular pickups. My pickups mount is modified, and I used the « standard » wiring : - Two humbuckers pickups (original not modified factory) with a solo 3 positions switch (head, both, bridge) ; - one pot for the high tone (pot + capa serial linked) - one potentiometer for the overall volume ; like http://tonefiend.com/wp-content/uploads/GL-Tone-Circuit.jpeg but without the bass pot. I would like to calculate the right tone pot value, and the right capa value. Do you know the impedance of the regular factory humbuckers ? A way to find it ? Just with a metrix ?