I am not a pilot, but I did work in Aviation.
I am a big fan of some properly tested Competency based interviews (CBIs) - when accompanied by appropriate technical interviews/tests.
What a lot of people do not realise is how much information they reveal about themselves in CBIs. Even if a candidate says little, the information is all usable.
CBIs might not be great for every candidate, but the properly tested CBIs are the best predictor of future performance.