Just about every other round experiences a FTF. A slight racking of the slide and it continues to feed properly. Almost like the slide is not traveling far enough back in the process. Not limp wristing. Not the ammo and not the mags. Ammo works fine in my G22 & G23 - plus I was utilizing 3 or 4 different brands. Swapped mags. The first 300 rounds worked fine. I cleaned the gun and tested again with same results. Visual inspections has not revealed any clues. I purchased this gun new approx 2 years ago. Have not fired it that much. Maybe a trip back to Glock is in order?