Just a little introduction of myself. I'm a retired Air Traffic Controller and live at 8200 ft in the Colorado Rocky Mountains. I have a Mavic Air and have about 13 flights under my belt as of this last day of April 2020, six or so of which are not in "Beginner's Mode." 400 ft sure is a lot different than 100 ft! ??? I'm surrounded by so much natural beauty that I'm looking forward to expanding not only my knowledge and skills at flying, but also my drone photography skills (I just ordered some filters). Happy and safe flying everyone!