You might want to check out the clips of the Univ. of Lousiana Lafayette on the link that Mark H. provided in post #154 Siggy's Hitting Clips - Image Event on page 16 of this thread. Their coach purchased the Epstein Hitting System a few years ago and installed it into their program with excellent results.
That's not what the ULL coach who handles the hitting told me when I asked him about Epstein's claim. He did buy it but he uses no one's system but his own. He's studied everyone but his methods are most definitely his own. Epstein went off half cocked on that one without permission.