Lights

The mount is a silicone band which is held onto the light by a tapered metal boss, with a small screw through the centre. The screw is quite dinky so a potential weakpoint. I can post a photo if it's useful.

Nah no worries, I've got it now and the bit you mean is obvious.

Feels like "rotation" would be the movement most likely to damage it, so maybe avoid that... that said it's the same mount on my gem 2.0 and that's shown no complaints after years of rough treatment