Cool story, Bro. Since we're rattling off anectdotals here's one: For every kid that gets a scholly after only playing in HS I know 1,000,000 that didn't.
Even though this is OT, I don't think waiting until you start HS is going to stunt your football ability. If you're a physically strong kid, you are going to be good. If you aren't, you are probably going to suck.