In my opinion, the ARF's (particularly the H9 arfs because I have experience with them) are a natural step along the progression from sport to scale. Why? Because they have a little of both worlds in them. THey are very forgiving, but you still have to learn things like rudder control, as well as flying the plane to the ground. I would recommend anyone wanting to get into warbirds to purchase an ARF first--a sport scale version of what they are wanting, and fly it until the wings come off. This will help prepare you for what's coming, but in a very forgiving way! Also, if you crash it, you don't have several hundred hours into the build! Don't overpower it, and you'll really have a winner! Also, cubs are good steps along the way--good to train on for warbirds and other scale flyers!