Jab, thanks. As I said before, my knowledge is limited. However, I stiill don't have a straight answer.
If the FAA say that augmentaion is essential, and they are probably the supreme organisation (accepting their faults) regarding aviation regulation, how come we don't, at least, try and learn from them?
I ain't pushing Dick's barrow, but sometimes he makes more sense to me than some of the other posters on this thread.