Both my Phantom and Blade 350 QX sometimes fly in a different direction than I am telling it to with the RC. Sometimes forward is reverse. Sometimes left is forward etc. Why does this happen??? It doesn't do this all the time. If I am in a large open area I can figure out in time how to fly it back to me. But my Phantom once went right into a tree when I didn't have any room and time to figure which way to turn the RC when it went haywire again. This has happened with both Quads.