Interesting comment Ransom,, in 2018 at Gairdner with a 180 tail i rode into a 8mph cross wind at 200+, i had to fight the bike as it tried to turn into the wind, to correct i had to counter steer, in effect broardslide the bike,, and after reading your comments reminded me that it felt as tho the pressure was down on the lower half of the rear wheel,,
Dallas V you mention that Ralph appeared to stand before going down,, it has also been mentioned elsewhere on this site that he fourght the wobble for a period of time,, i would suggest that maybe he didnt stand, but was thrown ( being bucked off), these wobbles tend to try and highside a rider