Capcom,. .Have a look at ERSA, the daylight etc graphs, and the concentrations of movement rates at YSBK, you may very well be surprised. Several years back, freighter operators opposed an extension of tower hours, didn't really want to get near the delays when the tower is open.For some of your mates, that must be beyond their horizon, pun intended.
As for movement rates, assuming the figures quoted are correct, Bankstown doesn't get to 600 per day average too often. It's many a year since 1000 was seen, mostly it is more like a morgue.
Don't forget a circuit is counted as two movements for an aircraft doing touch and goes, which ever way you cut it, 360,000 plus at Ardmore puts YSBK and YPJT in the shade.
In the last decade, Ardmore movement rates have increased by almost 40%, can ANY GAAP make that claim.
And now it all works with a unicom, and works well.
Tootle pip !!