Chevvron
Remember that the RAF use specially selected instructors to train specially selected students.
Not quite correct.
The system may have changed since my time as a UAS QFI on Bulldogs but many ab initio pilots on UASs successfully learned to fly that aircraft (and to a more advanced level than the bare PPL) and it also had a CS prop. University Air Squadron students were chosen by the UAS staff themselves, via a series of interviews and not via the RAF “mainstream” pilot aptitude tests.