What is a "dry pull" jumper? Is it technically difficult?

The specific point of "dry pull" jump shot is to turn an ordinary jump shot into a static jump shot. For example, when holding the ball and facing the defender, you suddenly take off and shoot, and your opponent can't prevent you, and you have already finished shooting in the air, which requires high muscle flexibility. You can watch T-MC. Generally speaking, McGrady is, stay where you are. This technique first requires the strength of the abdomen and waist. Only by practicing the strength of the waist and abdomen can you use it with ease, otherwise you will hurt your waist! It is also very exhausting! So practice your body first! !