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Well, there were the 2 x A1 QFIS in an FGR2 T-bird on det in Cyprus, who decided to firstly fly a 21 vice standard 19 AOA approach, then secondly to pop the chute on short final. Cue red faces as they were needless to say dumped in the undershoot!
Obviously a crippling lack of ability, as done correctly the technique was not difficult and was very effective. Maybe they should have sought a briefing from an experienced F4 pilot rather than trusting in their A1 qualifications! Just because you have a badge does not mean you can walk on water!