I feel bad for the highly qualified folk who have gotten the TBNT letter from AA.
It's baffling. I wish I could peer into the machinery and figure out why the computer spits out A but not B. Psych eval? Only a handful of folk in Castle Greyskull (Centreport) would know. Or maybe the computer brain is at the school house?
Most of them have more TPIC than I do right now, although I do have a nice slew of type ratings, for what that's worth.
It's a weird, mysterious process.