I have three Phantom 2's - the last one I purchased was with the H3-3D gimbal. MAJOR issues chattering, jerking, etc. In addition, when upgrading firmware the calibration of the X1 lever on the transmitter put the gimbal/camera in the DOWN position at both extremes. I have returned the H3-3D for an exchange and put back one of my H3-2D gimbals on the Phantom. Did all the recalibration (it required me to downgrade from 3.02 to 1.08 - and the X1 lever on the transmitter STILL causes the gimbal/camera to point directly down in both directions. To get the level facing forward camera, I have to baby the x1 lever to just over midway. I've search, asked, searched more and find no others having this issue - or any suggestions on how to resolve it from the seller or DJI. Any help out there? It doesn't affect the flying of the Phantom, just annoying to have to baby the lever - too far and the camera moves to pointing down. Oh… LOVE the Phantoms and flying!