Having the GoPro on a head strap is the same as SpazCam for me, so I moved it to the interplane strut on the right of the aircraft, putting it about a third the way up from the lower wing.
I'm not thrilled with the result:
It was mounted using the bicycle mount around the strut (with a bit of tape to safety it), and I'm thinking I need to bring it higher.
Anyone else have these sort of problems, and how did you resolve it?