Hi Dick,
Actually I don't think that this particular incident was NAS related other than I would expect to see more of those types of things happening in a NAS unalerted see and avoid environment.
Can't remember the dates but it would have been somewhere between 92-94.
Altitude would have been 5-6000 and we were probably 15 or so miles from a reasonable sized regional airport. As I say it is a few years ago now and the only vivid thing is a very big yellow Pitts flashing right to left right before our very eyes (which because a Pitts ISNT a very big aeroplane meant he was very close). We had made all the appropriate calls on the appropriate frequencies and nada heard from our now dead intrepid aviator.
At the end of the day Dick, Leadsled and whomever else cares, my view is that any heads up on things that can hurt you is a good thing. Alerted see and avoid is better than unalerted see and avoid.
I fly for a living and don't have any issues with VFR traffic getting in the way of my radio calls, I am often a hundred miles (maybe more) east of Perth and hear traffic broken hill, Dubbo, etc etc etc, whether I get in the way of theirs because I can't hear them and inadvertently over transmit them I don't know, but I have VHF 2 tuned to 121.5 as well so would hope to hear something on that frequency if someone close enough was in strife.
All I would ask is that in your grail like quest for airspace change you don't dismiss the legitimate views of aviation professionals (note that word), some of whom have many many years of management experience at high levels in big aviation enterprises, as mere industrial manipulation and not real safety concerns.
And Leadsled, thanks for suggesting that I need more Valium, but how about playing the issue not the man.