Dick,
I know nothing about your approach/flying issue even after reading many posts but agree that it is a disgrace that you have had to go to such lengths to get a answer from CASA. As a leader of the LAMEs union I too have been dealing with the same CASA red tape to get answers to simple questions. It takes letter after letter and reminder emails until you even get your first response to matters that I and our members consider to be urgent such as aircraft flying aound with wires stapled together in emergency systems. I don't want to say too much here other than I hope the service levels improve.
cheers