I'm setting up Resource convoys for my first Japanese GC and I'm not sure if I'm interpreting the WitP Tracker data correctly.
I originally interpreted the values of "Res Ship Load" and "Res Port Load" to mean "how much you can load onto a ship per day" and "how much you can unload into the port per day." For example, in my screenshot, I thought that Port Arthur could load up to 4,000 Resources onto ships per day, and unload up to 150,900 resources from ships per day.
However, reading Damian's Japanese economy primer (specifically page 8), it seems that these values mean, "the maximum you can load onto any one ship per day" and "the maximum you can load onto all ships per day." This makes a lot more common sense, because Port Arthur is a size 9 port and it would be a bit baffling if it could only load 4,000 Resources per day. It seems this would mean the ideal Resource-carrying ships to send to PA are those that carry up to 4,000 cargo, not more.
Thanks for your help!