The first semi I ever owned and probably shot was a S&W 3913 with Novak 3 dot sights. I also have a Kel tec PF9 with 3 dot etc. My Glock has XS big dot sights on it. I find I shoot the 3 dots more accurately. I am sure the XS are capable of accurate shots and I know that my 26 is designed to be a defensive unit and I wont have time to aim if attacked. I think my issue is I want to be more accurate at the range. I know that its plenty "combat" accurate but I wonder if you have 3 dot sites on your Glocks which do you prefer?