Well, glad I arrived early.

First and foremost, despite what TSA says, Precheck doesn't open at 3am. It opens at 4am.

I arrived at 3:30 to find a short line of 5-10 flyers waiting for the 4am opening of TSAPre. By the time security opened up at 4, the TSAPre line was easily 75 people deep. Being close the front, I entered entered TSAPre and was out of security in 5 minutes. I was able to walk to my gate, grab a quick cup of coffee and walk directly on to the plane.

Mike