FWIW ... The XS sights are precise enough and very easy to acquire in all lighting. When I bought my XS sights, my objective was to as rapidly as possible acquire a good sight picture on a target within 21 feet. You can kind-of aim small, but this big golf ball in your field of view makes hitting a target further out increasingly difficult. For my G26, the XS made sense. The Night Fision looked great on YouTube. However, when reading the reviews out on OpticsPlanet, some people are less than happy with what was delivered. Trijicon and Ameriglo are both dependable and offer greater precision. On the recommendation of CGW, I'm getting a Dawson front for my P-10C. They've proven to be dependable/trustworthy for years, which is why I keep giving them business whenever I need anything CZ. They're relatively local for me.