x2 on posting the issue and resolution folks.
I actually finally got off my duff and called Champion (maker of my generator)customer service regarding using the N-G Bond plug. I get a similar reading on my prime power line monitor. The open ground lamp lights up ever so faintly.
Suprisingly, the customer service person, with a heavy but polite Canadian-French accent told me to have at it with the neutral ground bond plug and gave me the usual, "but have a licensed electrician inspect..blah blah to cover their butts.
Going to build mine tonight and try it out. Only 1 way to screw this up right
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2017 Ford F350 Super Duty 6.7 King Ranch Crew
Sold the 2016 Crossroads Sunset Trail Grand Reserve 32BH
2020 Grand Design Momentum 320G