My first plane was the Superstar, then I bought a Great Planes Piper J-3 Cub. I know that the cubs is not hard to fly but the money we put into it, I would rather get a little better first. What would be a good step up from the trainer Superstar? I was thinking of the Twinstar but I want something that isnt a trainer, I think. Any suggestions? Thnx alot!