The trial went well and I have some nice videos. I was unable to upload a video clip due to it being too large a file.
I followed all the advice from the BGA with respect to mount cameras to gliders and constructed a bespoke fibreglass mount that fixes securely to the wing and has minimal wind resistance. I could not tell it was attached to the wing from how the glider performed in the air.
This is a still of my final approach to the Park
Mark P