QR1 CSL DD back-out solved with sand-paper
I created a post on how I permanently solved the design issue on the QR1 resulting in back-out from the base and USB C being pulled out as a result. Basically the surfaces are too slippery for the compression bolt to prevent the surfaces from slipping. The fix is so simple and thus far is permanent.
I have submitted a ticket to suggest to Fanatec this be published and acknowledged as a known issue with a mini kit of a tiny square of sandpaper provided.
I hope this helps others. :)