Speaking of the -260C, on one occasion I went Bankstown Innesfail direct, the only reason it wasn't to Cairns direct is early morning fog in Bankstown, we ran out of last light.
Fuel consumption wise, 6-point EGT and LOP made such a difference to range.
That was back in the wonderful days when I only had an instrument rating, not a night VMC rating, so I couldn't re-file NVMC, and I couldn't file IFR, because most of the avionics were too new to have made it onto DCA approval lists, mere TSO wasn't nearly good enough. It was good enough to fly the Pacific IFR, but not in all-hallowed rarefied Australian air.
Not a lot has changed.
Tootle pip!!