I was about to install my billet sear when a trusted gunsmith told me he had failures on all five of the billet sears he has installed. He told me the anodizing wears and the sear spings are so hard it actually causes it to bind as the finish wears down. He did put the recommended grease on it before he installed it. He was forced to go back and install the plastic parts. Can any long-term users of the billet sear please comment.