Perhaps if his arm is worn out he depends on the curve a great deal more. Or any hook. Appears dead arm would clearly show up nor prominently on speedy ball velocity, not anything at all hooking. Industry experts speaking to DailyMail.com stated the signs or symptoms were being 'non-particular' https://www.dailypioneer.com/2016/state-editions/public-awareness-on-fire-safety-held.html