I was the ALM on the Tristar receiver training at Brize with a pilot from the test pilot school I think, I am not at home to check my log book.
The Tristar pushed the nose of the VC10 down as we approached and made contact and after the flight it was said it would only be done in dire emergency.
I was on the Sqn during GW1 and I do not remember any other receiver training being done.