For all those fathers that think future pitchers need to be on a mound at age 9, or before, with which I totally disagree, my oldest never pitched from a mound until age 12, and didn't really start to look like a possible future college prospect till age 14.
Younger son, a HS junior getting a lot of baseball mail, for whatever that's worth, looked like a player at age 8, just because he was one of the early coordination-type guys, but I've seen kids dominant at age 8-9 be very average at age 14-15 as other kids catch up in size and coordination.
(Moral: there is no sure sign at any early age-different kids develop at different times, so never "write off" any of them at any age, and more Little League managers need to understand that.)