HUH?

‘A member of the Royal New Zealand Air Force (RNZAF) Red Checkers squad died when he overcorrected while performing a manoeuvre he had not been trained in, a Court of Inquiry has found.
….Air Commodore Kevin Short, in his response to the report, said it had occurred because Mr Cree chose to fly the manoeuvre the way he did, despite his extensive training background…’               source