X-mas came early for me. I got my XS 24/7 Big Dot Tritium Express Set sights last Friday. I had them installed on my Sig P229 at my local gun shop yesterday. Pro: For my purposes, and with my ageing eyes, I think Iâ€™m really going to like these sights. I like shooting slow tight groups on a paper target as much as the next guy and my factory three dot tritium sights were pretty good for that. However, this firearmâ€™s primary purpose is for use in self-defense and it just took me too long to find the front sight during SD shooting drill. After only one day of dry-firing around the house, Iâ€™m really surprised at how much easier and quicker it is to pick up that big dot, dot the â€œIâ€ with it, and fire in every kind of lighting. And as far as accuracy goes (with the laser cartridge at least), I am hitting a 2-1/2â€ reflective target square with pretty good regularity from 7 yds away, and really good regularity at 3 yds. Con: When doing the installation, the XS front sight slid through the dovetail freely; no friction at all. The gun smith said heâ€™d never seen something like that before. So basically, the red threadlocker is all thatâ€™s holding it in place. Iâ€™ll just have to wait and see what happens when hot rounds are flying out of the barrel and the slide is racking back with each shot.