Over on previous page this thread 'MPN11' mentions the Pearce parallel runways. Point Cook operated usually on north/south runways also with the main runway being a mix of concrete and macadam with a grass strip either side. Not unusual in my time there to have three Winjeel flying courses at beginner, middle, near the end stages doing touch and goes from the three parallel runways. HEAD on a SWIVEL - WHEELS down and WELDED. IIRC the main runway was used for full stops whilst the grass was for touch and goes only for the tailwheelers (which could be unlocked in flight and needed to be locked for full stops).
Similarly the Pearce circuit was chaotic with Vampires and Macchis mixing it up on that single north souther. Was alright when Instructors learning in Macchis were with us learners in Vampires but then along came the learners in Macchis and boy oh boy.
Then the outlying airfield GinGin became available for Macchi circuits so that eased the pressure until they wanted full stops at Pearce.