Whats the worst flying plane you ever had your hands on??
TF Contender Gold Edition with a .46Fx up front. 11x6 prop barely let it take off, 11x7 a bit better but still flew like a dart through cement. Really needed a .61 though it is a .40 kit.
Wing incidence made it stop on a dime on landing; no rollout and wheel wires don't like that too much.