If you have mastered the high wing trainer then a good second plane that is balsa built and priced right is the Great Planes Super Sportster EP. It cost $119.00 from Tower Hobbies with motor, gearbox, battery and flies ok in stock form. With a better battery and you can add a little more power and flight time and save a couple of ounces. If you have some extra cash to spend you can go brushless and shed at least another 8 ounces in weght, add tramendous power and flight times in the 15 - 20 minute range. I have a brushless setup in mine and it flies great at the lighter weight. It will fly extremely slow or go straight up with ease.