Fohnwind, I think one of the very important requirements for the Hems companies is NVIS time, this (I believe), is due to the requirements of the charities not the operators. Quite a few charities are looking to move into night time HEMS. This may explain why (assuming what you say is true), many NA co-joes were not successful with PAS. Regarding the 'proper multi crew experience. Well, if the commanders have it, then they can bring that experience to the operation. How much proper multi crew experience do NS co-pilots have when they start?
(Asks an ex- NS co-pilot, although it was a long time ago)