When developing your application for the 6DoF controllers, consider these guidelines for achieving a better user experience:
Lower the ray angle of the controller pointer with an offset of 15 degrees for ergonomic comfort, and to reduce the possibility of the tracking ball becoming occluded from the user’s wrists.
Design user interactions within the field of view of the faceplate.
Avoid user interactions that require hand over hand motions that cause a controller to occlude the other controller.
Avoid user interactions that are close to the faceplate.