Thanks for the video Steve. Very helpful. Where did you get those flat things with the 1/4-20 threads?
Does the gopro in front of the windscreen bother you when flying? Have you tried just putting it on the glarescreen?
I'm thinking about some strategic use of cameras during the testing phase to look for any anomalies. Just ordered some very cheap gopro clones to see if they will do the job.
Lots of the aerobatic aircraft I've seen just use the stickers and seem happy with the results, but I have to agree that I would feel more comfortable with screws.