I bought this as an upgrade to my standard Vision gimbal. It's the eBay CNC one. (http://www.ebay.com/itm/381279553961) After quite a bit of fiddling with the setup menu I've finally got the gimbal steady and (almost) calibrated. Went for a test flight and now my I have a crazy vibration. Anyone else have an issue with shaking / vibrating after installing one of these 'plug and play' gimbals? If I fully uninstall the whole thing, my bird flies normally with no gimbal. Any idea what is causing this, or better how to resolve? Tried both DJI and aftermarket props - no difference.