Dragon1970, One need not be a champion to exercise proper grip, stance & posture. Of course the macho alpha male believes in the myth that all american born males are natural sharpshooters that can shoot everything using anything for ammo. I, too, own Gen4's that have been flawless since day one: 2010 G17, 2010 G19, 2011 G26 and 2010 G37. None will run on my light reloads when new, but then, new Gen2's and Gen3's will not run on them either. After 200 rounds of hot ammo, all will run on my reloads: 147-gr 9mm at 880fps 200-gr GAP at 700fps By the way, I am not a champion. I'm just a wise, old, little man that has learned what's what the hard way--through experience. Friends don't let friends use Federal Champion ammo in new pistols or in pistols with new springs.