From: Planning the end of the world, well out to 2023!
The SWAG, based on the formula used previously, would be the best system.
To look at US/British 2E fighters only: (Assuming a 12-15 average??)
The Blenheim 1F, was a bomber, good arguement for the standard 2E treatment
The Mosquito VI, had superior MV to a bomber, not agile but better than the Blenheim, worth 4-5 extra points of MV
Beaufighter, better than the Blenheim, not to the Mossie level, 2-4 points above the formula.
P-38 Lightning, as mentioned above, was a fighter and with its twin boom layout showed many times in action its ability to hold its own in combat, worth the 50% or 6-7 point MV bonus.
P-70 Havoc, like the Blenheim a light bomber, it was a good one though so an extra point.
P-61 Black Widow, I've never heard of it being out of the ordinary , but I'd rate it as similar to the Beaufighter.
dh103 Hornet, Dreaming.....
F7F Tigercat, ?, somewhere between the Mossie & P-38
Some of the extra combat ability of these, and all aircraft, would be covered by the increased experience of the pilots through learning how to make the best out of their Aircraft, which would be covered in the Pilot experience component of the Air Combat equation.
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