Hi, I have been reading the posts here around compass calibration and noticed people calibrating their compass before each flight and some who don't. I calibrated my compass when I got my inspire and it has been flying like a charm. This weekend I traveled to northern Maine to do some flying. I decided not to recalibrate my compass even though it was 600 miles away from where I initially calibrated my compass. Before taking off I checked the sensors and all readings were fine, all mod values in required ranges. I flew the bird in multiple locations and it was rock solid. I usually fly in attitude mode only as I like the behavior for video shooting much better but I flew in gps mode a number of times to check the behavior and it worked perfectly. Something to consider for folks who feel they need to recalibrate their compass before each flight. You probably don't have to if you have a good initial compass calibration done.