Tuc, we had a penny pinching exercise back in the 70s too. My ex-leader, now at Group, was seeking views on removing the attack camera and ASR capability from the Nimrod. He asked when these had been used.
I was able to tell him how we had converted a Posssub 4 to Certsub when we saw the submerged Foxtrot on the film. Then at almost the same time another crew off his old squadron dropped both ASR and all dinghy pairs at the Fastnet race.