Look at Glaus at frame 8 through 16. The hand action and load is perfect. Through those 8 frames you see the bottom hand work under the top, the lead elbow point nearly down, the appearance of the rear elbow and the hands hidden. When his hands turn over, the barrel with arc not go straight line. The time delay will increase the x angle.
http://www.youthbaseballcoaching.com/mpg/Glauss01.mpeg
Original Post