Sometimes I may drive 300 miles to a new location. I would have a difficult time taking off without a compass calibration, but then, I have a lot to learn about all this.The whole time I've owned my P4P, I was only alerted to recalibrate the compass once on the DJI Go 4 app. Never had a compass or IMU problem. Of course, I always check this on the preflight check list before launch.