Not almost everything he claims is Completely wrong or trash tho. Also, he isn't telling folks to guide up their racquet. He states that's what he does. Also, Considerably with the misinformation he tells isn't any worse then what most Professional shops push and what many of the forum regurgitate. https://craftsman-riding-mower82603.dbblog.net/7973295/sport-can-be-fun-for-anyone