I say that its a Battlefield, once Ive done my check-in and either I call on my way to the Airport or check at either the Counter or Gate to see if I cleared, and Im told that FC is Full.

Then either I get paged by the GA and given a new BP, or the scanner beeps and issues me a new BP, or as frequently happens the GA comes aboard and calls over the PA for me to come to the door for my new seat assignment.

anything before the Last EUA run I dont consider as Battlefield , for it means CO was simply holding onto seats and hoping they will sell them. But to each their own.