I agree with Scrubb - How prevalent is it really for expert racers with 100% or even 50% sponsorships to compete against entry level/novice racers? If your local club is letting that happen, shame on them for not offering a sportsmans class and post a link to the results while your at it!
In general, I'm all for reasonable rules to reduce speeds and/or increase traction to make the cars easier to drive, but I cant get behind rules to force drivers into one class and not the other.