I've got a slide that moved in a lousy set up I did that's been sitting in my desk drawer. I saw a nice gun in the classified last week that had a really wide flat top and it got me to thinking about salvaging that slide. I made a new fixture and figured I had nothing to lose and it would be a good test for the fixture. I had to remove quite a bit of material to get it to clean up. How flat is too flat? It's only .050 thick at the center of the flat which doesn't even leave enough depth for the sight cut unless I do something goofy. Thinking about using it on my frakengun so pretty is not really as important as safety. Is it toast?