RE: CMP Hellcat or Hangar-9 P40
Hangar 9 will most definatley fly better because it is lighter and designed more to be a sport plane that looks like a warbird.
CMP planes fly more scale and therefore are trickeir to fly.
Personnaly, I admit the covering job on the cmp is cool and you can add details to it, but in the air I would have to say ultracote looks better.
Remember, it will be a lot easier to repair the hangar 9 arf then a cmp plane...
I say go with the p40 from hangar 9