So this game has no limit on framerate, meaning the more powerful your computer, the better your run will be.
I have no idea how we could mitigate this so I guess im buying 4 Titan Xs and getting a sub 1
You could use a gamesaver to make a save with a prepared extra course and then remove it. The save will remain available as long as you don't interrupt power to the game saver (I leave mine plugged in all the time anyway)
The fact of the matter is that regardless of if they're being run now, someone has in the past and I feel it's in the best interest of the game to include those times.
The Timing rules I listed were english adaptations (no credits) of the Japanese rules I found on the nico RTA wiki, here http://niconamarta.sakura.ne.jp/index.php?game=cmd=read&page=%E3%82%AB%E3%83%BC%E3%83%93%E3%82%A3%E3%83%9C%E3%82%A6%E3%83%AB
I'm personally of the mindset that whatever someone wants to run and time themselves doing is fine as long as names don't cause confusion.
I guess a full suite of categories would have 6, 2 each (any% and all golds) of normal course, extra course, and both.