My guess is that all this additional grounding has caused a kind of cool return path from all the various units to whoever is the bestest, shortest path to good old TERRA FIRMA.
You would literally have to seek out all the spare taps of GRDS & NEUTS to see who is not where they should be. The bonding is quite overkill and causing the big dilema. The sorta estimate would even shock the typical JOE!
Could always have the owner help with T&M, they follow and get to be a tester, hey hold these two things for a second.
