We discussed this pretty thoroughly with the CM Team, BTW Krusty, Thank you... I appreciate your testing with some of the CM's.
The forces of B-29s will have to be split up, 24 Formations of B-29s will not be attacking 1 Target. Going into Frame 1, There will be three targets for the B-29s... Equally divided that would put 8 Formations over each target. (24 Ships). This can be raised or lowered going into frame 2 depending on the results of frame 1 and the same goes for the ALT CAP, It can be raised or lowered depending on the results.
In regards to your testing with Fuzeman and TracerX, I don't think it really represents enough of the FSO type engagements we see, 1 or 2 aircraft attacking any heavy bomber formation (B-17/B-24/B-29) are bound to take losses or make it seem impossible. While there may be some engagements of 1 or 2 aircraft trying to attack a larger formation of B-29s, There will also be coordinated attacks of multiple squads of Japanese aircraft in FSO.
We all know about the massive B-29 raids over Japan and the difficulty the Japanese forces had trying to engage them... It was a extremely difficult task, but successes were had and we will work to find the right balance should the Frame 1 results show them impossible to bring down.
As far as the P-47N goes, I'm not to familiar with the historical load outs of the P-47N. I know there has been talk of this in the past few FSOs and BOG, but I'm just not that knowledgeable about them. Shoot me a link to the discussion or a website and I will consider changing it, if it is indeed true.
I've flown some of the missions that we will see in this event while testing the last few weeks. Many of the USAAF targets will take just under 60 minutes to fly too. Allied Escort should be wary about loitering over Japan for too long or they will not make it home and will be counted as lost. So in regard to the P-47Ns time over target because of there ammo load outs, time may make that a non-factor... But as I mentioned, shoot me a link about the N's ammo.
As far as the Ki-67 is concerned, the Japanese will have USN Fleets to target over the course of the event, So I included the Ki-67 so the Japanese could bomb or torpedo them. But for the most part, The Japanese will be on the defensive.
I hope that answers some of your questions.