From my experience, Yuneec has kept compatibility on all their camera set ups. I got a CGO1 set up on an St 10 or 16. The CGO2 and 3 also work across other drones. The gimbal mount looks like it would work. What advantage is there in making it proprietary to the 520? There is an entire market of current H owners that could potentially upgrade to this so why would they pass on those sales? Their commitment to having a camera line that works with multiple ships (350, Chroma, q500, and H) is proven a good strategy. Why is everyone assuming the worst?