Hello, I am in the process of deciding what type of glock I want to buy. The Glock that is most comfortable in my hand is the Glock 23, 40 S&W. I also shoot this model well. I want this pistol for home protection, but I would also like to compete in glock competitions as well. Can I compete with the Glock 23? If so, in what categories? If not what other Glock models could be used for both home protection and competition?