I have put 75 Winchester PDX1's through my Gen 4 G23 so far. My goal was to put a total of 200 failure free of them through the gun, and then use it for carry ammo. I chose the PDX1's because I can get them locally at Sportsman's Warehouse. I had 2 failures to feed yesterday with this ammo. Long story short, I think the FTF's are an ammo issue. This is because my two handed grip is solid, and most Gen 4 G23's don't have FTF issues. Here's my problem. Do I switch over to Gold dots or HST's, and go for another 200 round trial? Is their quality better than Winchester's? Or will I be wasting my time because 75 rounds into the Gold dots or HST's I'll get another ammo quality issue? I am trying to take Massad Ayoob's advice of running 200 failure free rounds on a carry gun. The gun is brand new, and I shoot 180 grain rounds through it. Just my preference for heavy for caliber rounds. What do you guys and gals think I should do? Also, anyone have any velocity data on the 180 grain Gold dots or HST's out of a 4 inch barrel? Thanks.