F4u-1 is fine when it has space to manouver (a 5k co alt fight would be fine) but today I joined and ki84s were pretty much vulching. When I upped a f4u1 the fight would end up on the deck, full flaps. Ki-84 has a big advantage over the f4u-1 at those low E states, it can nose up and f4u cant follow. Allies don't have anything that can match it in a fair fight.
Japanese have 3 fighters where there are only 2 US fighters. Maybe add FM2?