Excellent point indeed.
Think about it, you can run 200-250km/h at a track day on a main straight quite easily, lap in/lap out. Without requiring a cage, chute or event a harness!!!
That's at a CAMS event as well.
Given the ANDRA/CAMS relationship it's quite surprising the rules are still how they are.
CAMS are a problem at the best of times however ANDRA rules are just so much more...
Of course as you said, it is hard to account for the "LCD" (Lowest Common Denominator).
I mean there will be one retard who will go run 140mph and be unable to pull up in the event they did change the rules... So I can see the point.
However the "happy" medium for everyone isn't close however.
And the SAU Nats in Nov - Goulburn Airport - 800m runs, with a radar
Heathcote has recently had some attention to the track surface as well Duncan, so would be good timing if you were thinking about it.
As you know, Heathcote rules are also a little more forgiving as well, given they are not ANDRA
http://www.heathcoteraceway.com.au/scrutineering.shtml
If you guys wanna look into it further, could organise a private day easily enough. SAU-Vic has one in a 2 weeks incidentally with the WRX/HSV Clubs down here.