Charging Voltage?

What is a good way to test the voltage drop across the various points of the hot side?

Back probe the connectors? I don't have proper backprobes, but I've always found paperclips to work well.

Is there a better way to do it?

I got mixed results today. I'm going to start fresh tomorrow. Take readings after start up, and then again once the engine is warm and the car has been running a while.