I think the US should have more naval units in sz 44, it takes 4 turns to sail to Italy from sz 44, and even longer to the Baltic sz.
I don’t favor forced bids, but if players desperately wants more action in the pacific, bidding Chinese infs, and/or US naval units in the pacific makes it easier (for allies) to wage war in the pacific.
I did some calcing, and it is $47 in the pacific with NOs. Not all of this cash is easy obtainable, but even with the original setup, allies will get hurt if they leave the pacific altogether.
And US can be threatened by the polar express, note, any decent allied player will not lose WUS, but it will tie up US forces to protect it’s mainland.
Japan has to expand a lot before any polar express is powerful enough to make an impact, but from several rnds into the game, Japan can get a foothold in mainland Asia, and at the same time keep Alaska for a few rnds.
But the most important factor is that Germany+Italy is usually stronger than UK+Russia, I think the game is meant to give US incentives for fighting mainly in Europe, the problem is that naval units are very expensive, even a sub cost the same as two infs, so it is too expensive to fight a two-front war. Bidding naval units for US in the pacific can help solve this issue.