Mile High wrote:
My gen has the autostart function, which allows the generator to start when shore power is lost, and it shuts off when shore power is restored, so at some point it's all designed to transfer with both supplies hot.
Oh NO! You are wrong. Just read the posts. Apparently not all transfer switches are made to NEC codes, and are dangerous. If you are worried about your electrical system, strip the breaker in the RV, start the generator, and close the breakers. No load on switching supplies and save yourself 2 trips to the power plug.