I have been shooting from heights of 20', 50', 100', 200' and 400'. I notice we need to increase flying speeds as you go up to get videos that are soothing to eyes. It's trial and error for me. Speed settings are important for flying on pre-defined missions. Does any one have tabulated speeds at different heights to give soothing results to eyes? One can use these numbers as baselines and adjust to suite situations.