Post defined by Oregon Chief as a "Structure"

[hurk27]

Does the 400 A to the meter base, and then branching off with 2 200 A circuits make any difference?

Nope again see 230.40 exception #3, if this were not true then this exception would not be needed.

Also these are not just circuits as they are ahead of the main service breakers so they are service conductors or service entrance conductors.