God bless em alright. Last time I was doing a trip to YSSY I thought I'd visit the Airservices Australia website and familiarise myself with ICAO differences........ geeez there are a lot, I got bored after an hour of reading all the differences like "Australia doesn't recognise a 'destination alternate, it calls it a blah blah blah ". There was so much pointless stuff there that I never got to any good stuff....I wonder if here is any? I'm sure there are some rules that are better than the rest of the world, I just didn't find them.