Im wondering what the percentage of high school pitchers is that throw curves and sliders and especially spiltters when they are growing up and when do they start with these pitches. I grew up a pitcher and started throwing curves and splitters by the time I was 13 and now can barely lift a baseball let alone throw one as a result. I have this feeling that kids these days are starting to throw these pitches at maybe too young of an age and when they start getting a bit older, like around 20, its coming back to hurt them. First off, I'm sorry to hear about your arm. 27 is too young to not be able to throw a ball around. The answer to your question is "probably too many too early", and you're right that it's probably causing all sort of problems down the road for a lot of kids. Given the normal stress an overhand delievery places on the arm, curveballs and slider are just piling on. The problem, is, if you're a 14 year old kid throwing 80 or 85, it's going to take some smart adults and a lot of will power on the part of the kid to NOT want to learn those pitches, as someone with that sort of arm has some serious potential. And we all know that scouts are going to be drawn by a HSer who throws in the 90s with a good curve. Evidence seems to show college age pitchers who've not been injured have a better chance of staying healthy down the road. It would be interesting to find out what sort of pitcher the typical college pitcher was at a younger age to find out why this seems to be true. The why (luck, mostly a fastball pitcher early, better mechanics, etc) may prevent the type of troubles we are seeing from Jones, Neugebauer, etc.