How do I know how to set the Explanar to the correct angle?

The correct angle is achieved when the Explanar hoop is at an angle that runs up from the ball through to the chest of the user. You can easily achieve this angle using the plane sensor supplied with the product.

If you are stood in the hoop and are holding the power roller as if you were to hit a golf ball, the plane sensor should be touching your chest. If this is so, then the Explanar is set to the angle of your optimum swing plane.