If you want to move on to a low wing tail dragger, and you no doubt will at some point, you can`t do any better than a 4* IMHO. You might also look at the Hanger9 Pulse XT as well. I`ve flown both and they are similar. Both excellent airplanes. With either you`d probably want to start on low rates and/or minimal control throw settings. If you want a low wing but would like to stay with a trike gear, a Golderg Tiger or a World Model T-34 would be excellent choices. If you want to stay with a high wing for a second plane, the Avistar is great and the Goldberg Protege has received good reviews as well. Whatever you choose, suggest you seriously consider keeping your Superstar and keep it ready to fly. Everybody needs a backup and I dare say there'll be times when you`ll want to relax and " just fly ". I still have the Avistar I soloed on four years ago and have always been glad I kept it.