Forgive me if this subject is on another thread...I did a search and did not find this being discussed. I am monitoring my Inspire using an Ipad-air without 3G. How does the Cache Maps in the Background work? I would really like to be able to have the map function working from wherever I am flying. Do I keep this Cache Maps in Bacground switch on in the settings menu? This map function is really great...to be able to switch back and forth from the camera view to the map view, showing the direction the craft is flying is very helpful. I just want to make sure that I am doing this correctly. Also, when I am out flying, should I turn the wi-fi switch off on my I pad? Thanks.