All I know for sure is what the video showed...
and that when we had the National meet in Tucson - there were a bunch of very long faces when their timeslips were a full second slower than at Cecil. (yeah, I know apples to oranges there)

All the internet bravado about who's ride was faster gets all mixed up when people are posting timeslips from different tracks times of year and obviously different DA and track prep. Everybody enjoys and down-plays having the "geographical" advantage of Sea Level tracks with mineshaft air. But put the group together in one spot and all that goes out the window.

Then all you hear is excuses. LOL