The idea continued beyond the F-4 era and in the '90s someone decided that we would do it with F3s. So a bunch of us were sent from Chiv to participate in an AD exercise based from Leuchars during their TacEval.
There is nothing more soul-destroying than staggering around at high level far out over the North Sea in a single engine jet dragging an empty gun and a pair of acquisition limas around. The Hawk didn't like it, the performance was rubbish and with no RWR, radar, ECM or even chaff / flares we were nothing more than an uninteresting target with limited SA. Zero chance of keeping up with even a co-operating F3 let alone anything else. Even Hawk v Hawk with acquisition missiles and gun fitted was a lesson on nose authority and energy management, or lack there of.