I understand that if you wish to start Pilot Training on the UAS now you have to visit Cranwell for a quick Aptitude test and medical as well. (Think its been in for some time now)
Idea was to stop people getting through EFT, turning up at OASC and then failing a minor aspect of the medical - which happened a few times.
Should have been posted in Military Aircrew forum as well me thinks. (All though that's debatable)