I think I was on the last exercise before the (lack-of) capability was formally withdrawn. Log book not to hand but circa 1993 would not be far off and again, from a failing memory, I think we deployed from Chivenor to Leuchars as part of their TacEval. Initially we operated from a HAS site, eventually getting the aircraft tele-brief plug clean enough to work, before dispersing to a civilian airfield. At no time were we part of an F3 package, just worked / got-in-the-way independently, often very far over a cold North Sea.