Streaming was a thing when I went through in 87 and as an instructor 92-5.
Common Bulldog Phase (air experience really)
Common Dominie Phase (high level nav)
Common JP Phase (latterly Tucano) low level vis nav.
Streamed Gp 1 Fast Jet or Gp 2 Multi Engine
Group 2 went off to learn the dark arts of Astro etc in the Dominie (the drawback was for the guys who went Nimrods as there wasn’t a great deal of tactical stuff.)
Group 1 did a low level radar targeting phase in the Dominie, followed by an advanced JP common phase (latterly the Hawk). After role disposal there was a strike attack lead in or air defence lead in on the JP/Hawk. For those sent Canberra at role disposal it was back to the Dominie for a bit more dark arts training.