Original OP here with a few updates. I changed the pigtail on the street-side. Problem still there. I changed the small, red, regulator in the street-side bay. Problem still there. I will replace the main, curb-side, auto-changeover regulator next.
"I told ya so's" are in order here from some in this thread.
Here is my lessons learned:
1) Apparently many techs say it's a good idea to change your main regulator out every 7 years or so. Mine is 7 years old. For that reason alone I should have disregarded what my troubleshooting efforts were telling me and just replaced it.
2) Because I was never able to see green flags from the street-side cylinder I assumed that the gas was not making it to the curb-side regulator (which is why I changed out the parts I did). Well guess what? That's one of the symptoms of a bad regulator.
Anyway, I'm out a few bucks and time, which I have an abundance of. I'll post back after I replace the regulator. Again, thanks for the replies.
