Up to this point, I've avoided Virgin America because of no TSA Precheck. I just fly Delta and it's pain free out of BWI. I called Virgin and got really frustrated because the representative said she had never even heard of TSA Pre-Check. This Monday, I will fly out of IAD to SFO (via Virgin). I'm going to see if the TSA agent will accept my Global Entry card and a paper Virgin boarding pass over the way-to-awesome Delta iPhone app, which beeps 3 times and lets me get through TSA in 2 minutes over 40.