This video talks you through how to calibrate your accelerometer, otherwise, know as your sensor. Your Ghost will achieve the best results when your sensor is calibrated for all six positions. There are six sides to the sensor, so the Goal is to calibrate for all six sides facing up. You need to begin with the position the sensor will be mounted in. After calibrating all 6 sides “write” it to the control board. If you mount your sensor in a different position you need to make sure to adjust those settings in the software.