I did my first flight last night and have a question that I don't know how to test for in flight. After landing, the motors can be turned off by pulling the left stick all the way down for 3 seconds. I can easily imagine pulling the stick all the way down while at a high altitude to do a quick descent - would that kill the motors in mid-air? Seems like being a flip of the stick and three seconds away from completely killing the motors while in mid-flight would be a really bad design. Does that feature only work after it's landed?