umm, I remember raiding Danzig & Hel, yes Danzig showing blue in Sept, not red with Polish vessels docked there. Maybe an error, better let GWX team know before they complete 2.1. I found ships there worthless for IIA cuz they need deck gun to be sunken, and I don't want to risk using 2 or more torpedoes to sink less than 3,000t vessels. I usually patroling between AO76 to AO94 for juicy ships like large merchants in IIA. Maybe I ought to open campagin files to see if there are more Polish routes further north across Baltic Sea to save my fuel on my next restart with IIA.
