Keep in mind, one of the hardest things for pitchers to do is learn the rise. I believe this is PARTLY because girls are taught a curveball first. While a curve and a rise are extremely similar in grip and finger movements, one you spin sideways, the other backward. MOST OF THE TIME when you learn the curve first, it makes the rise harder to do.
Bill, would you teach the rise ball spin and/or progressions after learning the drop and change up? I don't mean throwing the riseball game ready but working on the spin, release out the back of the hand, proper cupping and nose slightly up. I see PIs close to me teaching the curve before spotting the fastball and change up. Do you think the reason HE instructors teach the curve that soon is to get the arm action closer to IR release?