Evalu8or, I don't understand the phrase "executive stream". From my perspective (former Flt Lt), anyone who has taken their eight pieces of silver on promotion becomes an "executive"....end of. You can't expect to crawl back into the womb at will once you have started your way up the greasy pole. If I had been king for a day I would have offered PAS to Flt Lts only. I might, if I were feeling generous offer some senior officers PAS as Flt Lts. Sqn Ldrs are too easily plucked from their primary duty (experienced aviators) to fill all sorts of nebby jobs.