Interesting -- my understanding was that in those combined lines, you typically get
"PreCheck-light", which applies to your
person (i.e., you go through the metal detector rather than the full body scanner, and keep on your shoes, jacket, etc.) but not to your
bags (i.e.,
you still have to take out your laptop). This is because the laminated paper stays with
you and you give it to the metal detector agent, but they don't have a way to associate PreCheck with your bag as it goes through the X-ray along with non-PreCheck bags.