Bob, Thanks for the info about the dropping resistors
. I'll be pulling the chassis soon for some other work, and will build a temporary setup to check out both approaches, 350 volts, and 380 volts. My particular chassis seems to do better with the higher voltage, as applied by a variac, but I don't want to run the entire set like that, and chance a problem. I'll post results as I realize them. Glad you're feeling better!
Kevin