Thanks GeeRam
Thank you for the date correction - I should have used a larger ?
I was in the RAAF(R) at the time and should have remembered better. Apart from that, the facts still stand. The Victor holding at FL250 came up as the Lightnings left him inbound with - "We're just just leaving 250 and dropping down lower to have a look at the countryside. His controller (ex RAAF pilot) just roared "Oh no you are not!!" and that seemed to correct the situation.
JohnB