Wow--I guess I never read the sign. I am in and out of DEN every week and never raised an eyebrow in the premier security as a 2P last year, nor has my wife had a problem as 3P. I honestly thought they just looked for a "1" on your boarding pass. I'm 1P in 07 so I suppose it is moot. It is rarely overcrowded even if they are letting in too many people.