I remember when (far more years ago than I wish) I was about to set off to CFS to attempt to get an A2 and the CI handed me my recommendation with the words " When you get to Little Rissington hand this form in at exam wing and see who is doing the test with you. If it is Flt Lt **** return to your aircraft and come straight back. I will not have any of my staff examined by that man."
It wasn't and somehow I passed (1st time!!!!)