[mark christopher]

Think Pete's covered most of it, tyre chunking is caused by bad prep and hitting things, which will happen irispective of motor.
The previous years no one ran production cup in its old form, its there if some one wants to, racers may choose not to,
Pete explained why fixed gearing does not work on foam tyres.

You do make me laugh tho, you slated the brca for not doing something, until I pointed out they had done some thing, now your questioning if its a pointless exercise?