P40s in my opinion are the best plane ever if you can fly one, it only weighs like 8500lbs where as an F4U weighs about 12000lbs. They have 6 .50 cals and enough ammo that you can shoot and not worry about missing, since my aim sucks every time im in a plane like the F4UC or Nik with the big cannons, there isnt enough lead in the air at one time for me to hit anything, and if you hit them right it only takes 50 rounds. People complain about it being to slow, In a dive on an enemy I have had it up to 480mph and it cruses at about 280mph level. It may be slow but it is also an all together differant style of flying, its not a turn and burn because spits and zeke's will tear you in half and not a slash and dash becuase the guns arnt big enough to destroy planes often in one pass, and it doesnt handle well enough in a dive. It is a combination of the two, I find that you have to go more by the feel of the situation than anything else, People just spoil themselves with amazing planes like spitfires and 190s that alot of them dont want to take the time and deal with the frustration of learning to fly the P40 or planes equivialent to it. You have to re learn how to fly, in my opinion. I had to fly it for 2 months straight to get good in it, and I am in no means saying I am a good pilot or better than other people and I am not the P40 god I would like to think I am. Its just the plane that fits me best and it could fit alot of other people too if it is just given the chance. And that my friend is why I like P40s so much:)
