maybe you're just copping some really hard asshole testers. I know several people who've passed their tests first time out recently in Horsham and Warracknabeal (north west victoria) maybe you should just try another town.
But shit, anything is better than what they had before. When I went for my test I just drove around Horsham for a while chatting to the tester and we were nearly back to the VicRoads office before he said "Shit we haven't done a low speed, there's an angle park, pull up there."
Hmm, Western Victoria, Skyline GTS, just failed license test.... You wouldn't happen to know Clint with the MX-5 would you?