Back in the 70's, Melbourne Approach used to do SRA's with the military out of Laverton.
The MIR3's would come up to Tullamarine on a "practise diversion" often incorporating a SRA.
Sort of training for both sides of the fence. One of these "practise diversions" undignifyingly ended up with a wheels up on Rwy 34 one day.
Reputed to be the only survivable wheels up by a MIR3.
I'm unsure if a SRA was involved with that, but the "practise diversions" seem to disappear from the repetoire after that, funnily enough.
The cloud break procedure is a different animal, basically (from memory - ouch)
involves radar vectoring into the circling area using the radar terrain clearance chart.
I think at the end of the procedure, 500ft lower than the radar chart
can be assigned in order to get visual. Not permitted at Melbourne to my
knowledge. Go figure. Happy to stand corrected on any of the above.