as is typical with TSA..... policies and interpretations of policies are as vast and wide as the number of airports. I am generally treated very well at my HOME airport that I commute out of because of familiarity, other places... its a crap shoot. Some places shoes on.. others off, some will wave me around the full body scan and put me thru the old style system.....most will let you use the crew line..... you just never know.