Ran 300 rounds between the two and I am impressed. I played around with 4 different recoil spring weights. 12, 13, 14 from cajun gun works and whatever the factory installed one is. It is too early to tell which one I prefer but I am leaning towards what I run in my CTS 40s, 12lb. The accuracy out of these guns are great. At 20 yards, I was able to get some groups inside 2" off hand. I suspect once I get more accustomed to the trigger and do some group shooting off of a rest, it will produce some outstanding results. Both guns ran flawless. Zero malfunctions were experienced. As good as these guns are out of the box, I plan on modififying factory CZ rubber grips and installing them in place of the thin aluminum grips. I could never warm up to any of the thin grip offerings and my hands and preferred grip needs a bit more width in the grip. I also plan on installing a .090" front sight from dawson. It is nice CZ finally offered a gun with a serrated/fiber optic front but I prefer a thinner front for the action shooting sports. More to come as I experiment and run these in competition...