Going back to the MOD callsigns, I remember when I did a couple of months at Aberporth, "Blackbox H" was a Seaking operating out of Pershore.
Also the Llanbedr Devon (XA880, the silver one) callsigns matched the pilot. Gawd I wish I couyld remember names, as there was some really nice blokes used to fly them. Nugget 22 was one of them ? Eric Something ?
Hey ho, isn't age wonderful !!!!