About bloody time someone started using common sense. I lived up there for 17 years in the days when it had an open limit and I must say it's an absolute joy to be able to cruise at any speed on the XS or in a car without having to worry about being pulled over. It makes the long distances more bearable when you can slip along at 160/180 kph and the XS loved it.
Cheers
PS: when you come up behind a road train (3 trailers) doing 160 and then you can legally accelerate to whatever speed you like, it makes for safer motoring as you are back on your side of the road much quicker!!!