'Jaguar Bill' as we called him was a sim instrcutor of ours at Linton. IIRC he was always 'obscured by smoke' (he had a belt fed habit) he was a joy to be instructed by even if you did have to brief outside (so he could have another). I recall he was a bit of a single seat bigot, in the nicest sense. When we first met he nodded approvingly at my RN rank slides and said something along the lines of "Sea jet, single seat, we like single seat.", and then asked, "What do you think of the guys who want to go twin seat?". I started stammering through a 'back bone of the RAF' and 'well in certain situations' and 'if the jet's mechanised correctly' type answer which he stopped with a slow shake of the head and simply said "No."
A gentleman.