Hello - I have a question about balancing my Zenmuse h3-3d / Hero 3+. I've had it about 2 months, taken it for 24 or so flights, no real problems, but there is something that's been bugging me about the gimbal. By default, when the Phantom is off, the camera top hangs forward and to the left: if I center it, it flips to that position. I have seen youtube videos that show balancing out the gimbal by attaching a nickel to the back of the gimbal. Is this necessary. or am I messing with something that's best left alone?