HKF ( for a change ) is on the money. Friend of mine that does FIFO told me he is getting delayed just as much with these COBTs as ever and that he has proof that not everybody is getting stuffed around equally.
Perth airport is NOT busy in the scheme of things although the archaic procedures and ridiculous seperation do make it seem so. If Beijing, for example, applied the wonderful Perth system your delay could be tracked on a calendar.
Maybe somebody needs to go to the mining companies and let them know how much these delays are costing them, see how someone like Andrew Forrest reacts to being told PH airport is costing him 10s of 1000s of dollars a month, I'm sure he'd be happy ?