BN,Its not this way under the NMFA.
You have a road and a city classification. Once per year both classifications bid on which classification they want with there full time company hire date seniority. There is not to much to it. I am not talking about bidding on a day to day basis like it used to be with the Teamsters back in the day.
What you describe is very much the exception to the rule in the NMFA. What you're referring to is a Master seniority board and they're rare. It's mainly a Mid-Atlantic and a Northeast thing in a very limited amount of terminals but not anywhere else in the Country that I'm aware of.