In reply to nickinscottishmountains: Yes.
I was very lucky to have an RM Doctor, just back from Everest, as a WInter Climbing Mentor. We did the Inglis Clark route on Creise, Sron Na Lairig and Deep Cut Chimney. Also micro navigation off those routes. I had only done rock climbing and summer walking before then. Early starts, normally sat waiting for the snowplough at Tyndrum he had a wee Xr2.
I was on the dole those two winters, so had the time......
Recently saw him on 'Doctors and Nurses at War'.