I bought a cruisecam headrest mount from B&H, similiar to the pvc mounts people have been building. For me this is optimal as I can see how my inputs are. I'd eventually would love to get a camera in the footwell to look at my footwork up close as well. Depending on the club, they may enforce your gopro to be tethered. This one has a nylon strap which I just wrapped around the middle portion of the open backplate and they seemed good with that.
http://www.bhphotovideo.com/c/produc...st_Camera.html