On Thursday, December 26, 2019 at 9:19:35 AM UTC-6, Mike N. wrote:
Wow, great examples of the tail wagging the dog.

On a less scientific note, and maybe more to the point of simple common sense, I have trailered my glider in a tube style trailer using a V6 Toyota Rav 4 from California to Utah going over the Sierra Nevada's and it was an easy comfortable trip.
To mitigate trailer sway issues I simply noted the speed at which trailer sway started when doing simple lane changes or getting passed by a large vehicle, and set myself a top speed limit of roughly 7 to 10 mph below that. Problem solved.

Thanks! A good practical solution!