I always like to recommend the Goldberg Tiger II as a second plane. It's easy to build, it flys great, and it's very stable. But because it has a fully symetrical airfoil, it will do any trick in the book! I LOVE this plane. I like it so much in fact, that I just built one for my wife to learn on. (although hers is the 60 size, because I had an old 90 FS kicking around)