Hi everybody, Yesterday after having recorded 7 waypoints for a ccc travel, I launched the sequence but the TH started to reach the WP1 going down more than the loaded WP1. When I realized it was going below the loaded WP1, I exit on the ccc but it was a bit late because the camera touched the ground. Luckily just a minor scratch on the camera. Everything is working. I am just surprised of the altitude error. Is because the WP1 altitude was to low (2 to 3 meters) ? Do you know how is measures the altitude ? With gps and or with barometric capsule ? Perhaps this is due to the gps uncertainty? Or compass calibration ? My Typhoon H is the Advanced one. Thanks in advance for advice or help..