Richo
Be a good idea to cover that the multiple calls at a CTAF are not all mandatory, just recommended. Nothing worse than 126.7 tied up by a single aircraft making 8 calls on arriving alone at an unattended CTAF
But it probably won't work - the ones who attend safety seminars are the ones who don't need to be there coz they have the right attitude anyway.
This 126.7 matter will worsen if moreCTAF en route calls proposed by CASA (currently on hold in the rewrite of 166) occur. Might be time for some new CTAF frequencies in NT, Qld, and WA?