[Si Coe]

Thing is, there are only really two disadvantages to this:

1) Its a pain to scrutineer. Thats a fair point, but other classes manage so it can't be that bad.

2) You can't gain an advantage over someone who can't afford fresh rubber.

I'm not sure it won't impact on who is in the A-Final though. It might make the A much more interesting by adding a tactical element to qualifying. We all know that grip levels on a track can vary through the day due to heat and weather - choosing the right round to play your fresh boots could leap you up the rankings. That would lead to us seeing a few new faces up there in the A, because they got the tactics right.
Whether that is a good or bad thing depends on your opinion of course......