I bent the sear myself until it would engage correctly. Was not hard to do and you only needed a a few hundreds of thousands of a bend for proper sear face to notch engagement. Then I would polish the heck out of the sear engagement face and change the sear engagement angle with a slight touch of a dremel grinder. The polish the engagement face with some ceramic polishing stones. If a guy took his time and went slow it worked very well.
Sometimes no bending was required just work at it slowly and change the angle of the sear face until it just engaged the notch.
Wear some strong readers with about 2X magnification and you can see the hangup and what you need to so to fix it.
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