While working away at sea many years ago I had a chance to shoot air pistol with an engineer who was a Chinese Olympian. He shot with his elbow bent, really bent way off locked. Now all these years later and both my elbows full of arthritis I can no longer lock my elbow so shoot pistol both air and B/P with my elbow very bent like the Chinese guy and now realise how comfortable this is, even with my problems, and that even when I was fit how much of a strain it was locking the elbow out as I was taught.