The Kadet's a good plane, and it flies even better with ailerons. As people have noted, though, adding ailerons is a fairly big job if you're not experienced. I reduced the dihedral on mine to almost flat, but a guy in my club simply added dihedral to an already-built wing, and that worked fine. If you want a good kit that comes with ailerons, you wouldn't go wrong with the Sig Kadet LT-40. Easy to build, great instructions, and somewhat more aerobatic than the Kadet Senior.