Posted for "Bill Kennedy" <bill_kennedy_3@hotmail.com>:
Paul:

I've got many hours flying at high angles of attack. Believe me, it wasn't my AOA indicator that kept me safe. My AOA indicator was normally used pick an appropriate speed on final and I'd often glance at it late in the flare to see how much energy I had left. Having an AOA does not make you stall/spin proof -- training might. Yes, I read the article and I didn't find much to dispute in the author's conclusions.

Note: My wish list would include a rudder servo/augmenter that would keep the ball in the middle unless I demanded otherwise. Every plane I've flown (some pretty extreme) has been forgiving with the ball centered and most have been deadly otherwise.

Good luck and happy flying,

Bill Kennedy