Thanks, Dave. And I don't have much 'beat me up' left in me.
The problem has been a source of constant irritation with FPL. They have a sensor on their main box (each box serves 4 pedestals) and are planning on reading it next week.
The space next to us has an electrical contractor from the Chicago area, residential and commercial, and his class A does the same thing. He's just like the rest of us....lost as a goose.
I'll keep everyone posted as we progress down this bottomless pit.