Took it up this morning & did some video... Not a good test though as it was kinda over-cast, plus kinda windy. I couldn't get much altitude either - the Cox Skycruiser is rather over-loaded with two of these cameras on board
But, the results were encouraging, video-quality wise.
I think I'll mount just one camera on the bottom and try again later. Now I've got two of them, one under each wing to balance it out, and to protect the camera during landing. But as cheap as these things are I guess I can afford to try it with camera as landing skid