Just a thought on how to get more folks in the less popular rides. Not that it matters all that much, but like many, I like to see a variety of planes to fly against.
Add a rank that is plane specific. For instance:
Tour XYZ
Top rank by aircraft
KI-84la - #1 JoeBlow, Runner-up Johndoe
P-40E - #1 Janedoe, Runner-up Jillhill
Spitfire MKI - #1 Crunk, runner-up Rockstar
Ect
May prompt some folks to take the less-used rides and add some fun for those who like want to see how they stack up against others who like the same rides they do.