Good question. No more model railroaders among us?
H
0 scale (it's number zero - not the letter O) = 1:87
http://en.wikipedia.org/wiki/H0_scale
Have a look at the largest H0-scale railroad in the world and don't miss it when you are in Hamburg:
http://www.miniatur-wunderland.com/
And I could win without tweaking on any of your list. When you are in a championship and see that you won't win the race just hit the pause switch (above center) and restart the race until you know the track very well - and you'll win.
The important moments are not how long you have the finger at the button but
when do you lift it off for a very short time! Do that before any sharp bend.
When you know a short track very well it's fine to switch to trail camera. Nice feature.