I’ve been working on an alternative mount (but 1F still a few weeks away) that uses 30x30mm extrusion. I probably would have used 20x20 but 30x30 is what I had on hand. It has a closed section and an open section, is easily adjustable and locks into place with bolts in the back. 30x30 accepts a lot of mounting options and I’ll most likely use gopro style but will wait for the 1F and monitor to arrive before deciding the final configuration. I think it will need rubber strips in the sections that actually contact the monitor.
I can upload the freecad files if anyone is interested.