tirano and i discussed this at gencon. im still not in favor
you only kill 4 wimpy ships. assuming japan blocks, his carriers and support ships may be safe for a J2 follow on and stack up, but you cant land supporting fighters on hawaii or build much more than the tts needed.
usa is imm brought into war, and gets $$ but even better, gets 10 facs. So he may not be able to push you off right away but hes building in parity with you and thats his clear and onky early game goal. if japan leaves, hawaii is recaptured. And all of this to get $6 when there is $35 or so money down south that has to be denied to the small allies. Like irl, PH awakens a sleeping giant and emboldens his little buddies. japan can sprinkle planes everywhere but it cant defeat/cover every front at once