For years, I only owned one 9mm, a G19. I never thought of it as an adequate caliber until I saw the recent tests with today's premium ammo. Although I still carry a 357 sig, over the past four months I converted a G23 to a 9mm with an after market slide milled for a Trijicon RMR. Then I bought a G17 to compete in defensive shoot matches and most recently I purchased a Walther PPQ in 9mm. Since this is a Glock forum, I will not talk too much about the PPQ, but it is a fantasic gun and comes in 9mm and 40 S&W. It feels better in my hand than any other handgun I have used and has the best trigger outside of 1911's. Light take up, crisp 4.5# let off, no overtravel and the shortest reset I have experienced outside a 1911. Do you have the urge to try a different caliber? What would it be? Have you changed your mind about 9mm?