Nice idea.

For sure any device helping to control aoa is good. But as we all heared so much about stall speeds during our pilots students time some of us seem to forget that one can stall any aircraft at any speed - probably related to stall speed discussions this should be pronounced much stronger during theory lessons as well as in practical flight training? What it means i could experience strongest while gaining my aerobatic endorsement exiting a loop - too much pull coming downwards made it quite impressive how it feels if airflow is cutted off while having nose down at higher velocities...

Nice vid, but its the common blablabla about AOA, which can be read in any book. What I find most important on an approach and AOA is the fact, that if you maintain attitude and chop the power to idle, AOA increases dramatically. The flatter the idle pitch of the prop is the more. So chopping the power to idle should be simultanously with decreasing the pitch angle of the wing.