you forgot to mention passengers who have checked in at home and printed their boarding passes whether or not they are flying C, F, or have any status whatsoever. The girl running the standard LY queue a few weeks ago was sending anyone with a home-printed boarding pass to the Business line. I was furious and just walked straight to the front of the line and told the security people I am not waiting in this line which is going to take 20 minutes. I also called LY to tell them what happened.