You ride down a stright line in midle of arena and you push your horses sholder around and go the other way. It is not a role back you do not want them to sit back and turn around. You want to push their sholder around and stay at the same gait. It should look like a hot dog shape when your done. It is sopose to opien out the sholders and flex the midle.
You want to bind the horse to the out side of the turn.
Dose that make sence.