I believe the Govn’r is correct. The GCFI simply compares the outbound current to the return current. If they differ by more than a few milliamps, it cuts the circuit. The ground wire is nice to enable even those few milliamps to be shorted harmlessly to ground, but not strictly necessary.
> The GCFI simply compares the outbound current to the return current.
Yes, thanks, I’m convinced about that now.
I believe I need the ground for the outlets at which I have my surge protectors, though. If I’m wrong about needing it for surge protectors, somebody please let me know. Too late to save the work I did adding it, though. :-)