I don't think your testing is valid. Ohmeter readings will "read' through the loads paralleled with the blue wire for example.
Your charge voltage is still "a bit" high and that is likely due to a bit of drop in the ignition harness.
Best way to check the blue is with everything hooked up "normal" and key in "run." This applies power to the blue, and the green regulator wire (field) will cause the field to draw current, which puts some load on the circuit. This is "good" as the loading helps show up voltage drop
Now withOUT disconnecting the blue, "back probe" that connector and see if it reads "same as battery."
