Originally Posted by Jim K
Since it is its own spring, you could try tuning it by clamping the bottom part (inner side) in a vise and tapping the top (outer) part with a brass or plastic hammer. (Note the word is "tap", not "bang on as hard as you can".) That is the way folks have "tuned" M1911 extractors for years. You risk breaking it, but it doesn't work now.
I'll try this. I am pretty handy, I just didn't want to start this process without asking questions first.
Do you think the issue is that it's not bent far enough in? That over time, it's bent outwards a little, preventing it from getting a good hold on the shell?