Art Clemons wrote:
"Would not a more reasonable approach be to use something like a
Wattmeter and get the antenna resonant?"

You have a point. The wattmeter was on the input to the tuner and we
don`t know what the tuner`s loss is. If the loss is negligible,
everything should be OK, and "the input power was the same on each
antenna."

Best regards, Richard Harrison, KB5WZI