idk how scientific this is, but a hitting instructor told me (this guy played at a p5 and has great track record with hitters for what it's worth) that my son can subtract 250 points from his batting average at the hs he plays at (highest classification in Oklahoma) and generally that's what he could expect to hit in the Big 12...for example, if his hs batting average was .480, subtract .250 and he could expect to hit .230 in the Big 12....like I said, not scientific but a general guide per him