This will have a 3 turn delay, note.
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Pearl Harbor went swimmingly for my opponent, as he got 5 of my battlewagons. This is more than during my own playtests, mainly due to a last-minute change in Japanese Naval Weapons from L1 to L2.
His Philippines invasion also went off very well:

Meanhoo my opponent had a bit of a brain fart and forgot to take Guam (the following turn, just sailed the SF off for I guess a pleasure cruise):

Note the mod starts with NO tech for anyone, so players can invest it any which way they want. The starting Allied amounts are visible in the 1st screenie. Priorities for the US would include Infantry Weapons, Naval Weapons, Radar L2, Advanced Fighters, Advanced Subs, Command & Control, and certainly the 2 economic ones. [I just won't tell which ones have an extra chit! Unlike vanilla techs can have a max of 2 chits for the important techs, 3 for the rest]
I also gave surface ships extra punch when bombarding (40% base chance of also hitting any units on a Resource, +10% per level of Naval Weapons), battleships also de-entrench. Balthazor managed to take some garrisons down by this means.
For now just will hunker down and wait for the US economy to make its presence felt.
Since it was visible during my turn looks like Balthazor canceled the Yamatos in favor of 4 more Shokaku-class fleet carriers. [He can correct me if I am mistaken]
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One major necessary change which has become obvious is that the UK will need more income. Or the same income once I make Australia a major. I'll just go with allied tech help keeping tech levels between the UK and her Empire allies reasonably close. In return the Aussies can get a Lend-Lease convoy line from the US.
Another I am mulling over is to delete the Alaska pseudo-battlecruisers (which were basically white elephants and not worth their disproportionate cost), and use that slot for the post-treaty BB's, making regular BB's the WWI tubs, which were too slow to sail with the carriers. Fast battleships basically were battlecruisers, with better armor. I want to let the US keep the Montanas as an option (if say there ends up being 3 Yamato BB's).
Canada somehow ended up not being able to upgrade anything (an easy change in the editor).
Stay tuned...