I'm looking to hold one in October some time. All of the above that Ken mentioned is true--there simply aren't enough weekends in the month to not conflict with someone else's local match, which I try and avoid. It is also a tremendous amount of work--often I don't even get to shoot the match I set up, as I'm too busy running it. But in the summer time, it mostly boils down to temperature. The last 3-gun match we held in May (I think), about 20 to 25% of the shooters simply left before they finished, because the heat was too much to bear. And I don't blame them--it was miserable. October will bring either a 3-gun match or a 2-gun match (carbine / pistol). Stay tuned!