ORIGINAL: Canoerebel
Here I seem to be getting two different messages: (1) forget it - the Japanese economy has had far too much time and freedom to bring in resources/fuel; you'll never be able to really hamper fighter production at this late date; and (2) the draw on supply is so great for Japan that Erik doesn't have unlimited fighter production and might be on the verge of collapse even as we speak.
It's less about his ability to draw replacements vis-a-vis supplies and more about the ability of the Japanese air OOB (via the game engine) to accommodate the pace of those replacements.
Franks are SR3. You can't just replace a gutted unit in a day, unlike moving in an entirely new unit on the Allied side (including moving pilots if necessary).
ORIGINAL: Canoerebel
Based upon what I do know, I think the truth probably lies closer to (1), in part because Erik is such a gifted player. He knows how to maximize things and will have taken full advantage of everything he can. I doubt he's anywhere close to exhausting good fighter frames and pilots. I think the Allies would run out of fighters and bombers long before Erik would. I think I can fatally cripple the Allies by pursuing any kind of sustained air campaign that yields less than 2:1 or 3:1 return on the investment.
Take advantage of your Corsairs. You get how many of them again? They're the one thing that I've found, on sweeps, can handle massed IJ fighters. Even in groups of "just" 24. They tick all the boxes: do well enough against Franks/Shindens/Sams/etc.; have long range; you get a lot of them; using them doesn't have to detract from your own CAP/LRCAP/CV escorts.
I agree with Bullwinkle, sort of - not in that sweeps are a luxury you can't afford, but more along the lines of them not being necessary/only do them if it makes sense in an ancillary way (i.e., harvest a few VPs, wear down CAP for massed 4E strike, etc.). In trying to achieve air superiority for the sake of air superiority... well, I don't see the point of that.
That sort of thing may require bringing even more on the ground (and your flak is fairly deadly, combined with IJN/IJA bombers being weak with just 4x 250kg bombs at most - not even matching a B-25's payload).
ORIGINAL: Canoerebel
But the clock and Victory Points begin to favor Japan if the snowball doesn't begin rolling downhill fairly soon.
I think you may be underestimating the Soviet capabilities, even without any air support to speak of. There are literally more Soviet forces in August 1945 than there are in the entire Japanese OOB. It takes a few weeks to mobilize them and rearrange, but they're nothing short of overwhelming.
Even a well-built defense can't stall them for very long at all. Maybe that doesn't get you a Major Victory, but it basically guarantees a Minor Victory in this game.
IM(not-so-H)O.