Not sure how you know it was a trial basis, that's news to many, but it certainly wasn't communicated to the CAS teams as such, and the fact that ALL the CAS schools did play each other but NOT the other 2 may be coincidental ( I think not ) but doesn't sound like a serious trial to me. If it was the real thing then Barker and Pius would have found time for just 1 game to complete the "Trial". Our Coach Br Murphy, who was instrumental in school boy footy at that time, never mentioned any such trial.
We were instructed that if we beat Barker at Barker in the very last game then we would be the outright winners of the CAS comp.
Had we lost, it would have been a 3 way tie with Aloys and Barker!
Such was the pressure and crowd for that last game, and the real winner is written in the CAS Rugby records, and it doesn't say Aloys!
It's an Aloys convenient conspiracy!

So someone else, ie the CAS board etc, must have also agreed who really won.
I did note that Aloys have a picture of the 1979 team as winners in their clubhouse, cheeky buggers, so do we at Queens Park.
FYI we never played Pats or Pius in any other sport!
Ancient history now, and Yes times are very different now, and we should move with the times.