Dsrsia described how his father went straight from training in the USA to an instructors course.
This is my dad's instructor's course photo - he is 4th from the left on the 2nd row. He was a Pilot Officer when he began and completed the course, that is within 6 months of being commissioned when he was awarded the brevet at the end of his course at 1 BFTS, Texas.
The idea, I think, was that newly qualified pilots would have more empathy with those undergoing training.
As I posted on another occasion he rebelled and pressed for a transfer to an operational Sqn flying Spitfires. It did not go down well at all, but in the end he got the posting he wanted.
One of the reasons he was so pushy about this, is that when, as a 22 year old, he went to Padgate at the beginning of the war, he was clutching his pilot's A Licence which he earned partially at his own expense on the Civil Air Guard Scheme. However he was told that the Royal Air Force did not need partially trained pilots, what they needed was trainee aircraft fitters. So on a lick and a promise that when flying training was available he would be on the list, he signed-up. In early 1942 he was still hard at it.
Then there was a rumour that some of the fitters were going to be posted to India. He knew it was a case of 'now or never' and made his case to a Senior Officer. He was tested on his flying ability and instead of travelling from Southampton to India, he travelled from Liverpool to Canada and from there to Texas. Some 4 years later when he was a war substantive SO and was able to ask questions, he gently enquired why he had had to wait so long for selection. "Put it down to the administrative chaos of the war" was the reply. But by then the Royal Air Force had made it up to him.