Replying specifically about the stabilizer lift discussion: What you're saying is true, but the effect of AoA is not huge. Stabilizer lift is a small fraction

Replying specifically about the stabilizer lift discussion: What you're saying is true, but the effect of AoA is not huge. Stabilizer lift is a small fraction of main wing lift, because it has a huge leverage. The corresponding effect on aoa (effectively stall speed) is noticeable but also not huge. CG matters mostly because of its effect on controllability, not because of its effect on stall speed (although the effect is there.) I maintain that, for the purpose of judging whether an alpha vane has failed or you're actually about to stall, you can ignore this effect when estimating AoA. It's exactly the same as making the statement "If I'm flying at 1.5 Vs0, I know I'm not stalling (unless I'm in a very steeply banked turn or is pulling up sharply out of a dive.) I saw you're a CFII. If a student made the above statement, would you berate him for failing to consider CG position?