Please, early war Pacific setup is MUCH better than late war setup for the IJN. I would much rather fly against F4F's in A6M2's and A6M5's than fly against F6F's and F4u's in a N1K2. Also, I have not seen a scenario yet where the IJN had a chance to win when their numbers are fewer than the USN. The only way to balance the equation is to over populate the IJN side, AND give two lives for specific aircraft. The speed factor of Allied aircraft is a MUCH more important factor in the TOD events than it is in the Main Arena. The only two things that I could point out in this scenario is first, I thought that F4F's were the first planes based at Henderson Field. I am not sure how much later they got better aircraft. Second, when were TBM's introduced? I expected to encounter SBD's, not TBM's. We encountered a flock of TBM's in Frame 1, and had a hard time keeping up with them in our A6M2's even though we had an alt advantage. I am not complaining, since our squad enjoyed all three frames, and had good success in each frame, but if I had to make things more balanced, those are two items that should be considered regardless of historical accuracy.
A side note for everyone, we have learned to fly the IJN scenario's much different than any others. It requires much more patience, planning and luck than any other scenario. The IJN just can't go toe to toe with the USN aircraft, so you have to make your own luck and create your own advantages out there.
Salute to the planners and everyone. We had fun regardless of the outcome.