Just bought my first CZ (CZ 75 Compact) last week, installed TFX pros on it today and fired it for the first time. At 15 yards it was a one inch group about 3/4 of inch to the right of the bullseye, and I decided it's not worth another session with the sight puller. When I first got it I was disappointed as to how hard it was to rack and how much I had to stretch to fire it double action, but I got a few tips that changed everything, i.e., rack the slide after you cock the hammer, and don't fire double action with the hammer all the way down. Plus after about 20 rounds it racks really easy. What a great gun!!