04 my son had that but found the CB easier on his arm. It was also less hittable. Approx 10% of his pitches were other than an off speed pitch. His CU was a modified Circle change and also had a late break. He would throw it at any count for strikes. At 16 he was pitching against college and pro hitters with great success. He topped out at 83 and was heavily scouted back then. Interesting they all wanted more velo and kept saying more LT. He is now at 87mph and not as good a pitcher as he used to be.