I tried out a new mount for my GoPro this weekend. I just used the standard flat surface mount that comes with the camera. The mount is not removable without ruining the mount. But it doesn't seem to affect the flying at all so I might leave it there for now.
Here's a pic of the mount on the wing.
http://mooneyspace.com/gallery/image/36105-gopro-wing-mount/
And this is the perspective from that mount. I was shooting video and will upload one as soon as I get it edited. I was careful to stick the mount directly on top of a row of rivets for added stabilization. It still wobbles a little right before take off, but the rest of the flight and landing is very smooth.
http://mooneyspace.com/gallery/image/36106-gopro-wing-mount-pic/
I've also got an under wing mount that uses the tie-down bolt as the mount. I'll have to take a picture of the mount. But here's the same shot from under the other wing.
http://mooneyspace.com/gallery/image/36107-gopro-underwing-mount/
http://mooneyspace.com/gallery/image/36108-gopro-underwing-mount2/
Cheers,