LoL, very funny..
Actually the one I exchange with a friend have a scratch mark on the insert. Light one.
Because the Watch is very new, I thought it might be a plastic stick on it. I look below light, it doesn't look like a ceramic.
And it feels like scratched plastic. So don't dare to do anything to it ady.
So you still own a sub?
Did anyone of you guys ever change the insert on a sub?