Hi guys. I'm new here so forgive me if this topic has been discussed before. I'm wondering what the general opinion of 10 mm vs 9 mm semi-autos. I, myself, seem to be divided. If I am not mistaken the nine is standard carry for many police departments. Yet a friend of mine who is a Statie swears by the 10. Any advice on which one is better would be appreciated. Thanks in advance.