content: Whenever somebody tinkers and comes up with something really clever it gets banned.  "Oh you've come up with an idea to decrease front wheel windage? Nope, BANNED!" "Oh you are utilizing skirts for ground effect? Nope, BANNED!" Whenever you come up with something new another rule comes up to stop it. Why even bother when you know your idea will be culled as soon as Bernie and his cronies hear about it?  At this point the only way to race is to do whatever everyone else is doing and shut up. You can 'tinker' with tire temperature if you want.