mine is mounted on the back of the G3X panel itself. There are bolt holes for that very purpose. Mine works fine. It just has to me mounted so that the pitch is sensed 100% in the correct direction rather than what it would be if the ADAHARS was mounted at say 45 degrees. In that situation you would be sensing pitch and roll simultaneously with just a pitch change. The same goes for the roll. You will configure settings later to inform the ADAHARS which orientation its mounted. Hope that makes sense.