Entire post was fantastic, but this resonated the most:
”Q: What is a good FB velocity for an 8th grader.
A: No clue but I do believe several of my friends ended up with TJ chasing velocity. Focus on location, mechanics, your body and velocity will come.”
My 18yo son is working on velocity increase (6-7,200lbs), but doing it through strength, agility, stretch, nutrition, mechanics, etc. The velocity will come with work on the foundational needs of the body.