I follow this YouTube channel, and they recently videoed and excerpt from a CET1 (Carbine Elements Theory 1) that Chris Costa taught in Indiana; in this video he's talking about NPOA, and while it may not be exactly like AS teaches it, it's pretty close. I talked with Costa about long range shooting recently, and he teaches and discusses a *lot* of the same stuff that AS does...and he said that he really likes Appleseed and our instructors.
Anyway, here's an interesting watch.
https://www.youtube.com/watch?v=PJYyVFtfTCY&list=UUYvlBEeEEoJE8uP7WWzPmnA