I'd say please use smaller words, but they were all kind of small, so I will say please usedifferent words to explain what you meant by this.
The BBCOR doesn't have nearly the pop that a -8 or -10 has, and it's also a lot heavier, so the BBCOR doesn't produce the same ball flight/distance. Plus with the bigger field it's much more difficult to drive the ball into the outfield. This can be discouraging to a kid who has always been a good hitter. To compensate, some kids will start over swinging, using more of their arms and flying open. It's counter-intuitive to these kids that the harder they try to hit the ball the worse the effect. They have to trust their mechanics and drive with the legs/hip to generate bat speed.
ahhhh gotcha, thanks.