Bradley Hughes was just on Swing Expedition, and he used the Down Under Board on the show.
I don't entirely agree with the way he says to use it, particularly the trail foot. It doesn't do what he said it did in the golf swing, but "feel" ain't real.
Hmm.. I didn't know freedom of movement was a thing.
Freedom of movement under United States law - Wikipedia
Yea, I have no issue with states baring travel from certain states. If Hawaii wants to shut down their airports and deny access, go ahead.