but I guess your use of the special diagnostic "Snap-On" tester has us speaking different electrical languages.

I tend to be very basic... using an old fashioned multimeter mostly [ however I have been know to use a modern digital meter too... but they often don't let me zero out on continuity checks].
Heck, I'm even partial to separate stand alone ampmeters!

Seriously, I honestly could NOT follow your explanation... but the main thing is that we are in agreement even if we are seemingly speaking a different language!
Thanks for your input.
Sam // Novato, CA