How do I know when I have positioned my Dr. Zaxx correctly?
First of all, by placing your thumbs in the orientation grooves, you cannot physically place your Dr. Zaxx backwards. After that, the only thing you need to do is ensure that the nubs are placed in the correct spot. When placed correctly, the top of your spine should pass between the two nubs. Neither nub should be applying pressure directly on your spine. Next, the nubs should be placed just below the base of your skull. In fact, they should be close enough to the base of the skull that you can just barely feel the nubs touching your skull.
