Nobody so far has said what Cabair actually teaches!
I learned at Beds School of flying, which is Cabair owned. They certainly did not teach long circuits at Cranfield. For 22, I was taught to turn base at what must be 2nm, well inside the electricity pylons. The white house with the red roof at the edge of the little wood was the ideal spot.
Can't speak for the trainee airline pilots at CCAT.
And from memory, the Avgas engined Katana is 5 kts slower round the circuit than an AA5 - so 65 kts on final, but I am open to correction. No idea as to the performance of the new diesels.