Yep, you can actually see the pattern of the circuit at times.
Called the manufacturer about the stripped nut. Instead of sending a new set screw and nut they want me to send the mount.
I'm a little disappointed. For such a small part of hope for them just to send the screw and nut to replace the faulty ones. I could see wanting to check it for a more expensive issue, but damn. Guess I've been spoiled by a few places with truly awesome CS. I know several that would have just shipped a new mount.