https://www.youtube.com/watch?v=yZ9-_OqyMcI&feature=youtu.be . I play ball for about 2 years as a hobby. Im 145 pounds 5.7 feet(1.75m) .im averaging in 63+mph velocity.!!Location is good. What are major flaws you see? and tips to get that velocity up.Healthy elbow no pain at all i just get sore on the shoulder after training.