The risk with being in condition white is that you're more likely to be targeted. Even if you are carrying a gun, there's no guarantee you'll be able to successfully defend yourself in a bad situation. I personally think attitude/demeanor/street smarts are much more important than caliber and gun size considerations for carrying. Remain neutral and avoid being easily pegged into a certain category by cops, criminals, and everyone else all at once. Same with driving - assertive, but not aggressive.