Ian B-B, (and Pete for a masterly solution of the "SPDC" problem !),
I think you're right, and that there must have been an OTU Course hiding in there somewhere. There'd be no point in sending him out without one - what use could they make of him on any Squadron out there with a war on ?
I think that the story that Millerscourt unearthed (and very properly brought to our notice) was never more than a "mare's nest". I never heard a word of it at the time (although I was in the centre of the action), or ever since.
But it is amazing the traction that these odd tales can get. Remember the "Buried Spitfires in Burma" ? Even I put in a Post or two on that, speculating on any possible explanation, before common sense prevailed. And I was in the theatre at the time, and we would certainly have picked up whispers.
Cheers, Danny.