you might double check on their laws....I think I heard something about it changing here recently, but I'm not sure....I know it WAS OC without being loaded...but I think that may have changed.....my wife's from there and her dad's a LEO there...but I'm not 100% on the changeI think you can open carry only if your gun is unloaded.
And the police has the right to stop you to make sure that your gun is unloaded (both chamber and mag empty).
I have seen some people carrying with the slide locked to the rear and no mag in the gun, that way the police dont stop them and can see that it's unloaded.
Also it's faster to just insert a mag and release the slide to chamber a round.