Thanks for the references Danny, just re read them, and what an interesting time it was. I had to chuckle at the deft way you, and others, dealt with the question of "Working On Governement Service", perhaps in modern times a step too far. Like the dog owned by Guy Gibson, a part of history that must be wiped out for modern scholars. The VV sounds like a terrific piece of kit, that might have done sterling service after Normandy, when allied troops needed close air support against armour.
Smudge