In reply to 65:
If you can find a copy on line of John Sylvestre’s Birdman of the Hindu Kush, it’s also worth downloading and watching. He was the pioneer of this sort of flying in the Himalayas. There is one scene where the cameraman is seriously bricking it as John flies metres away from the cliffs looking for an updraft to get them over a crucial Col.
it is interesting to listen to their comments about acclimatisation and exercise, and the difference between flying at 7000m and climbing at a similar altitude. Good film. Shame there’s no one doing similar from the U.K.