It would be nice if Yuneec published the pin-outs for the mount. However, my guess is that there a GND, a PWR, 3 control lines for the gimbal servos, and maybe a data line for the camera. One problem for using a 3rd party camera is the commands from the ST16 to the camera would vary, requiring a change in firmware. I guess it would be too much to ask that the firmware be able to support camera plugins so that others could provide a plugin that is compatible with the camera to be used. I for one, would love to be able have the FC trigger the camera based on distance for better mapping.