@genken
It popped into my head that I never covered whether a J2 is still good. Personally, I’ve never really done it, but think I can walk through it. The positive here is that no J1 limits the U.S. and leaves Sea Lion a stronger possibility for Germany and can be part of a Calcutta Crush move, but UKPac will be stronger and Japan will have one fewer carrier or make some other sacrifice.
J1 is still buying 2 transports and a factory for the mainland. You gather your forces and shift to sz36 anything that would have been used on a J1. Hit China hard. Earn 40 ipcs (30 base + 10 bonus for no war)
J2 you can still attack Hong Kong, you take Philippines with the 2 transports you bought J1, your original 3 transports can take 3 money islands, or 2 and maybe Malaya… but it depends on whether ANZAC or UKPac will be able to sink them. So let’s say you can take 2 islands (Borneo and Celebes). IPCs approx 43. 10+ fewer than a J1, about even with if you did a J3.
J3 you should be able to get money islands and Malaya, hitting around 55+, put your 2nd factory on the mainland.
So Japan is -15 or -20 on ipcs compared to a J1, but ahead of a J3 by 15.
U.S. is -18 ipcs
UKPac is… unknown, but +10 to +14 depending on if they take Sumatra and a few other things
ANZAC is anywhere from -1 to -10 depending on if they take Java ANZAC1. Their other lost income is national objectives.