Never used the radar. Being a pilot for fun and a long time truck driver for money, I'm already adept at dead reckoning (path integration) and landmark navigation. I make enough mental notes about my flight path to get back from the video feed alone. Absent that, the map is #2 on my list. Even removing the phone entirely, I can navigate BLOS using my existing knowledge of the terrain coupled with just the text on the RC to get pretty darn close to wherever I need to be.
Practice practice practice...even when you're not flying, and the skills will become second nature.
