I used to do this as a teen. My job title was 'jogger' and I had five of these lined up. Pulled the freshly sorted adverts from the wand machine (run by 'wand monkeys'), threw them in an empty jogger, QC'd a sample, took the next jogged stack out onto a cart that when full was sent to the cutters and eventually the stuffers. It was the top position that everyone wanted. Full grown adults threw fits when I got that job. I thought I was hot stuff for being promoted up the chain so fast. It was only years later I realized that most of those guys were mentally challenged and/or physically disabled and would probably never get to enjoy that sweet sweet jogging satisfaction.