[TEC] are availability dates in Roster files used at all?

[AntEater]

I ask because I sank the Agano - half a year before her commissioning, and in Lombok strait! There were actually TWO Aganos present in that task force. I thought "I ought to fix that" but had to see that the dates in the \roster\sea\japan dir have the correct dates. I have the bad feeling that these files are not used at all. The internal names used in the patrol log are a clue to that as well.