I don't understand this. Are you saying every time 'G' squashes your bum you should ease off because the AoA is high? I don't see how you'd ever complete a loop if you did that!
No - sorry - I didn't mean to imply you should ease off - or do anything at all! Except, maybe, to proceed with caution. All I meant was when you've got G, you've got high AOA. That's all! Nothing more and nothing less. High AOA isn't a bad guy by default, you can fly at high AOA all day long and that's OK so long as you know you're doing it. As you say, how else would you do a loop?
The trick is to pull as hard as you can but not so hard you exceed that stall angle. To do that, you need to know when you're approaching the stall angle. To do that you need an aeroplane that buffets before it departs (the Chippy) or an AoA indicator.
Yes, exactly, glad we're on the same page. My bum only tells me roughly what my AOA is. If I want precision I need a gauge or an aeroplane design that tells me.