I'm having a hard time wrapping my head around this course lock thing. I've put the Phantom out about 60ft, switched over to course lock and tried to take advantage of it, but so far I've not found any difference between it and just being in regular GPS mode. Is there something I'm missing? Also in home lock, lot's of videos talk about the craft making a circle when close to you or takeoff point. Am I missing something here, mine does nothing of the sort, maybe I've watched to many videos. Everything else seems to be normal.