My 2025 LHP was pretty similar velo as a jr but he stopped growing at 6ft 0-1. I think a very real issue is that kids start to have injuries at age 16/17 and velo above 85. All that subtle wear/tear from all that youth baseball starts to become evident and you're now able to mount forces great enough to break things. If I had to do it all over, I would take my kid to Randy Sullivan at the Florida Baseball Armory for an analysis and do whatever he said. Then I'd do his remote program or go back periodically for a check up. Read those 2 sentences again. Unless your kid is a true high level D1 or draft eligible pitcher and will benefit from the exposure of a national or high level regional club team; this will be a MUCH better use of your baseball dollars.