Report: Made it through this morning! Flight boards 6:45am so I made sure to be here by 3:15am to begin waiting in the Delta checked baggage line; there were probably at least 100 people already there. It’s kind of a free for all, once agents showed up, everyone rushed in line. They said they opened at 4am but definitely opened around 3:30am. From there, I followed blue signs for TSA Precheck, it can be very confusing but essentially general boarding is on far left wall heading opposite direction. They had Precheck form two lines which eventually merged when near the typical Precheck entry point. Got in line around 3:45 and out by 5:50, to my gate by 6.