Here's a small update that's kind of related.
For my 2 weeks vacation, I was told I'm probably getting around $100 for both weeks since I didn't work much. My on-car pulled up my attendance record, and it listed 110 days layoff and 30 call-ins. I asked the local sort sups what that meant, and they said "layoff are the days you call in and they don't need you, and call-ins are when you're not needed". They looked at the codes and got confused too. Here's why I'm angry. I never get a layoff notice. I call in 6 days a week at 7am to see if I'm driving. If I'm not, I call in 5 days a week at 4pm to see if I'm working local sort. If I'm on call everyday, twice a day, that's not a layoff because it prevents me from getting another job.
So, I'm on call from 7am-10pm 6 days a week, yet make less than when I was working preload while 2 guys under me DQ'ed themselves, and have a stable schedule but still drive if they're asked that day.