Haven't heard of this. Can someone post a link to their site?
Promotes a swing with a "tight HPP"
Since a pivot point is a point, then by definition it's tight.
I wouldn't watch any of the videos that sell the IB, because they promote a bad swing.
U of A uses the Insider Bat and they introduced it to us during the last clinic. As I recall, it has players using a "line up the knocking knuckles" grip, which Candrea didn't like. Don Slaught thought that the manufacturer was going to change that.
I am waiting to buy it, if they make that change.