'68 Barracuda - charging system questions

Two more here.
If you follow this then I think you know the answer to your questions about what the voltage should be at the regulator.
And also whether the voltage drop test should be done with with the engine running or not.

Taking the same scenarios with one switch closed, but three poor connections.
What happens now?
upload_2019-6-13_22-19-34.png
What's the Voltage at the switches?
And is there any current flowing?

I'm sure you got that. See if this next one makes sense to you.
Same three poor connections in the wiring.
Each poor connection has resistance to flow.
When the switch to the small lamp is closed, voltage drops across each resistance current is flowing through.
upload_2019-6-13_22-14-1.png