My experience trying to make these kinds of shots has me doing a couple things:
1) Fly far enough away you won't notice slight variations in the final result. Your first video has you so close that a UAV really isn't the right tool for the job. If you want to be that close, you're really best off with a handheld or cart mounted camera setup. The second video is about as close as I would want to be with the UAV shot.
2) Set the forward movement with the d-pad so you're not holding the stick forward. Now make your corrections very gently with the yaw and aileron control. You'll probably want to turn down the rates on just those 2 channels (especially the yaw) so you don't do anything jerky that comes through in the final video. If you're not holding the stick forward, slight corrections are much easier to make I've found.
1) Fly far enough away you won't notice slight variations in the final result. Your first video has you so close that a UAV really isn't the right tool for the job. If you want to be that close, you're really best off with a handheld or cart mounted camera setup. The second video is about as close as I would want to be with the UAV shot.
2) Set the forward movement with the d-pad so you're not holding the stick forward. Now make your corrections very gently with the yaw and aileron control. You'll probably want to turn down the rates on just those 2 channels (especially the yaw) so you don't do anything jerky that comes through in the final video. If you're not holding the stick forward, slight corrections are much easier to make I've found.