Thanks for posting the pic @sofj45. So does that lock cam bear against the glass or does it just block the sliding window from sliding? There’s a notch in the rubber that must be where the cam sits when employed, is my guess? The glass cutter cut the glass exactly to your patterns and the edge of the glass is just past that notch, so the cam would have to press on the glass. It doesn‘t look like there are rubber bumpers on the cam which I’d expect if bearing on the glass, but maybe I have the lock’s functionality all messed up. Happy Thanksgiving in any case!