Glock ruined the Glock perfection that was typical of 2007 models and before. In the past, I could buy a new Glock and it would work 100% out of the box, with any regular ammo and no brass to the face. How to ruin a legacy for no reason? First the MIM "dip" extractors in the late Gen 3, then the apparently oversprung Gen 4. I will note that my recently purchased model 36 (made July 2012) performed perfectly for its initial hundred rounds, thank God.