I think common-sense should prevail.
You can over complicate the simple and remove the enjoyment of competition.
Having said that I think there should be a control tyre. One make/one style/one compound. It might be different for different locations, but it would reduce costs and create a level playing field.
Also, given the rising cost of racing and the decresasing value of my wage, I question the need to have BRCA approved batteries etc. The costs might put people off racing. Surely, it's better to have full races, and frankly does it really make a difference?
Martyn and Tom.