This thread has hit it's third page in just under 36 hours of the original post and everyone is singing from the same songsheet. Perhaps someone will take notice. (I jest!).
I left the RAF at a bad time (one month befor 9/11) and managed to be made redundant from my first airline job before I'd even officially left the RAF. I did hear one sentiment from the RAF to the effect that all their retention problems were over. But I didn't go back in and neither did most of my contempories. And now, I'm far better off.
My reasons for not assimilating were various and have all been covered here in depth. But this was 5 years ago and things seem far worse now.
As for BGS, the class was full of mil guys when I did the course. They offer the best product for a chap who has most of the info but needs to organise it in his head in a fashion which will get him/her through the hoops.