The difference is perhaps that in Australia we always seem to be arguing over constant fiddling changes to that which in the end is probably worse and more confusing for people. … What we really DON'T need is any more confusion about it.
What Capt N said!
C’mon Jack and Dick: You know it’s all ‘workload permitting’. Centre has no hesitation in telling the ‘pop up’ VFR to ‘stand by’ while other matters are sorted.
[P]retty well immediate communication to pilots of aircraft you are separating.
What if one of the aircraft is an IFR SAAB on approach to Wagga and the other is a VFR listening to John Denver on the iPod? I don’t understand the problem with the VFR piping up and saying “That VFR at an unverified 8,500’ is probably me. I’m at 8,500’ on a QNH of 1017, 20 nms NW of Wagga.” My wild guess is that Centre will ask the VFR to squawk ident. My wild guess is that the IFR SAAB will be happy to know that the transponder info is accurate. The VFR might even go crazy and ask whether it would help if they tracked in a particular direction to avoid interfering with the SAAB’s approach.