I've been teaching hitting for 20+ years and have worked with every type of hitter you can imagine (MLB, Division 1, Division 2, Division 3, High School, Middle School, Elementary School, Baseball, and Softball).
The beauty of the High Level Pattern is that the best hitters at every level - in both baseball and softball - use it.
Once you learn it, you will never look at hitting the same way again.
And once you apply it, your mechanics will become more efficient than 99.9% of the players you're playing against and alongside, no matter what level you play at.