JohnVoR and Dick,
Can I offer you both my sincerest enthusiasm and encouragement to continue with the debate.
The time required of you is massive, the demand on you huge, and the outcome is priceless. The hours demanded of you to write the many words that you both have contributed are simply immense. Let me openly enunciate the value of both your contributions, and my appreciation of the effort you have both made.
The debate is being followed intensely by very many people, including Airservices, CASA, RAAF, every airline in Australia, pilots, controllers and every other player in Australia and abroad. For want of anything else, PPRUNE has become the defacto forum of Australian airspace reform, and this has become the pivotal debate.
Please continue. Although the demands that this places on you both are onerous, the contribution that is being made to aviation matches the inputs you are making.