True I forgot to add. Even so the voltage to the regulator must not have any "drop" or it will also overcharge
Yet another way to check that is to run a no10 jumper from engine block to VR flange, and disconnect the IGN terminal and run a jumper direct from battery, see if the charge voltage returns to 14
I've already done the voltage drop test and am using the ignition feed to trigger a relay that runs from the starter relay to the voltage regulator, reading battery voltage.