There is a 6 ft. LHP that is 13 years old, tops out at about 70. His delivery is around 3/4 (closer to sidearm, sometimes drops down to sidearm) but even when he tries to throw over the top with his curveball, he still gets side movement, now don't get me wrong, the curveball still drops a lot, but it also moves quite a lot to the right too. His primary pitch is a two seam, and that moves a lot, too. His curveball grip is just like a two seam, accept he moves his index finger right up against his middle finger. Any thoughts?