EZ Wiring Mini 20 Circuit Installation

Done some more voltage drop testing today and I think it's the ignition switch that's the culprit. Here are some readings i've done:

BAT+ to Red IGN SW: 0.0V
BAT+ to Blue IGN SW: 0.29V
BAT+ to Black IGN SW: 0.13V
BAT+ to Blue field lead alternator: 0.76~78V
BAT+ to Blue VR plug: 0.62V
BAT+ to Blue IGN on ballast 0.58V

With the engine running i've tested the ground voltage drop:

BAT- to VR case: 0.0V
BAT- to ECU: 0.0V

I took reading as high as 18~19V when the engine was running, not good. Going to buy a new ignition switch and go from there. Was thinking of use relay on the ignition switch wires but I feel like I'm done for now with wiring.7

EDIT: On the above post I stated that the ammeter shown heavy discharge, but that was because the ammeter was hooked up the wrong way. Read that the ammeter should show discharge with the light on, mine showed charge. So the ammeter shows heavy charge when car is running which I already knowed and it all make sense then. So the new ignition switch will probably fix the voltage drop and hopefully the VR would regulate the alternator as intended. Going to test use a jumper wire from the start relay stud to the blue field lead on alternator and se if the voltage goes down.