RE: How hard
Your question is a difficult one because I don't know your abilities. Its fair to say that Warbirds fly heavier than sport and acro planes. This doesn't mean they are difficult but different. If you learn to fly the plane on the wing instead of the engine you will be ok. That technique uses the air speed over the wing to fly the plane instead of horsing it throught the air with lots of power. You will learn how the plane stalls and what it's flight envelope is once this is learned. Regards BobH.