Originally posted by Orange
Time to stop beating a dead horse there and give me another example...
I stopped traveling to races around '95, so all of my examples are old. But just off the top of my head:
'89 Worlds - Yokomo has minispikes on 2.2" wheels
'91 Winterchamps - Pro-Line has minipins
'92 Winterchamps - Pro-Line has narrow truck fronts
'92 Nationals - Pro-Line has XTR compound
'95 Worlds - Pro-Line has the Square Fuzzie
Most of my examples are from Pro-Line, because that's who I was sponsored by. I either had (or at least knew about) all of those tires. Losi had just as many new tires, but you don't know about the compounds unless you have them.
There are other examples of where unavailable tires won races, but weren't "if you don't have them, don't bother" tires. The '93 Worlds were won with Pro-Line Stubbies and 5-rib fronts (neither were available), but Losi actually TQ'ed the race.
I think the best solution would be to allow racers to choose from a short list of approved tires. That way you could tune the handling of your car, but everyone would have the same options. The tires would still need to be controlled by the race organizer to make sure there are no special compounds.