Flt. Lt. Grogan
My apologies for not responding earlier to your addition to this thread but I saw it only recently. It is fascinating - not boring at all.
BLEU had carried out some fog flying in the early 1950s, mostly in the DH Devon. You and Pinky Stark were obviously doing it for real, in something rather larger. I certainly did not do any landings in fog during the development in Canberra WJ992, nor in fact in the Varsity.
Talking of WJ992, that venerable aircraft is no more except in virtual form as a bolt-on to the MS Flight Simulator, available as a download at
http://www.flyingstations.com/canberra-pack-tugs-trainers.html. So I can “fly” in it again after 54 years!