My son's catching coach is about 95% along the lines of what was originally posted, except, and this is along the lines of Lamber's post, transferring the ball from glove to throwing hand. He describes it more as "redirecting" the ball to the throwing hand, rather than a short drop. You definitely don't grasp. He teaches that turning the double play by a MIF is almost exactly the same concept as the transfer for the catcher. However, he also teaches that you start with the right foot to not only start hip turn, but also provide force toward 2nd as you begin forward motion. About the only other substantive difference is that he prefers the glove hand out in front as a "sight" rather than bent at 90% and using the elbow to sight along.