"Therefore as long as folks run, there will be a need nikis in most Pac set ups..."
Oh right, nobody ever runs in ETO setups, please. I suppose you turn and fight in a Fw190A-5 while dragging a Spit IX? funny I didnt see anybody using those tactics last 1944 ETO setup, where I flew axis all week. Rather the 190s would use better low level speed and teamwork....hmm...sounds familiar.
...as far as the Ki-61 goes its an effective fighter, plain and simple, the N1K2 belongs in those setups where it should be, like Okinawa (vs the F4U-1D), but its not required "in most PAC setups" as the Ki-61 can fight the F4F, F6F, and F4U-1 birdcage.
...btw try HurricaneIs vs 110s next BoF, have fun.