Thread drift: I think lm's last tour was the period when Experimental Flying Squadron was renamed Experimental Flying Wing and the OC changed all 'Nugget' numbers so that, like at Boscombe, ATC could identify them by instructing 'squawk callsign' ie Nugget 20 would then squawk '0420' and I can't remember what his final number was; in any case it changed to a 'Guantlet' number when he moved to Boscombe.