I LOVE the new Bathurst Bullet service times. The later departure and the early return, especially, are great. I will use it lots more often now.
The Dubbo XPT could probably be eliminated for a simple train like the Bullet and the Grenfell coach could meet up with it too.
You don't need a dining car and all those staff; maybe just a vending machine.
The most important things are a quiet carriage, a loo, drinking water and the journey to be as fast as possible by not wasting precious time at stations.
There should be information/announcements to passengers about exits before embarking - or, better still, all exits to be from one door and entrances by another and then the train to be out of the station immediately.
City passengers could show how it's done.
You could save at least 10 to 15 minutes on the time of the journey, possibly more.