I discovered, when changing out rear sights, that the dovetail was cut wide in the slide resulting in quite a bit of space under the sight: The dovetail depth is fine, it's just that the wider cut width pushes the sight's dovetail up when you tighten the set screw. you can see the extra width: Anyway, wondering if anyone has had to correct this, I'm thinking of welding a small bead into the rear of the sight dovetail (on the sight, not the slide), then filing it down to fit. Worth the hassle? I'm just a little leery of a sight that has absolutely no friction fit to it and depends 100% on the set screw. Asking around hasn't yielded anyone who will cut a sight to custom dimensions. Thanks for ideas.