My 11 y.o son has experimented a little with a curveball but with fairly inconsistent results. He just can’t seem to get a good feel for it. It requires a a lot of concentration and effort.
On the other hand, he seemed to pick up the slider without any effort at all. Just a slight change in the grip and a modest amount of supintation in the wrist, and it was there. I could see the red dot and he had some pretty good movement. It just came to him very easily.
When he gets a curveball right (1 pitch out of 6), the results are pretty dramatic - a lot of movement with good bite. The movement on the slider is less dramatic and more horizontal, but he can thow it more much more consistently (5 pitches out of 6).
My question is whether, in light of the limited results, he should abandon the effort to throw a curve and just work on refining the slider that seems to come so naturally.