After looking through and asking several questions about a second plane, I have found that many second planes are all semi-symmetrical airfoil, but still have a lot of dihedral and wing area to keep the stable and slow. My real question is how much does an airfoil affect flight performance? I trained on a World's Model Happy Fly 20 which has a symmetrical airfoil, but is still a high-wing, trike gear plane. I have had about 16 flights so far, and nine of them have been solos. Should I still get a typical second plane, or would it be too easy, and I would just outgrow it too quickly?