I took the liberty of quoting ,Oboe, from the CT forum discusing this issue:
You can't argue with the fact that the Japanese are being given apparently the earliest possible model of attack planes while the U.S. forces are being given much later-war models. WTH? What conclusions are we supposed to draw from that?
I know you Allied flyers don't pick which models are introduced, and I'm sure you're happy with what you get. But believe me, it would be in your best long term interest to also encourage HTC to give the Japanese flyers better equipment and choices in the game, because frankly its pretty discouraging. You guys could end up with no dedicated opposition in the PTO.
Good grief, the LW is so far developed they're down to getting the Me163 rocket plane, and the IJAAF is STILL without its best fighter of the war.