Must be a giant hub if those are the only jobs they do.
I think the hub is around #25 or 30 in the U.S. for package volume. Our twilight shift has around 15 or 20 revenue recovery clerks, and there are 6 on the midnight. Most are FT, only a few PT.
Also, vehicle positioner is okay, too. But those have been converted to mostly FT jobs here.
Customer counter is a good job. Sure it has it's moments and some days drag, but being in an A/C environment in a UPS union job is pretty cushy in itself. I'd rate it near the top.