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An edit summary, because one-line doesn't work that well:
Removed section on Perth, far too specific, there is no similar section for any of the several other places
Reordered the sections in IMHO better but not perfect way, tried to put less-readable, less important bulk tables/information at the bottom so reading the first couple screens could inform someone totally new to the race about it faster.
Commented out pilots section, the table has a point total across multiple seasons which to my knowledge has no meaning whatsoever.
Added section on the format of the race.
Added a tiny bit of prose to Rules, minor edits to the penalties.
I define "Format" as to how the event and series as a whole is structured, "Rules" are what govern pilots from the start of the course to the end.