Stunt plane flying is not an organized sport and therefore it has only one rule: be safe. What you consider safe and what I consider safe may differ greatly. A man I greatly respect loves to jump out of airplanes. He was a colonel in special forces and one of the reasons he resisted retirement as long as he did was, as long as he was in special forces he got paid to jump out of airplanes and after he retired he would have to pay to do it. No way would I jump out of an airplane. Stunt plane flying is like that. I've seen pilots get out of the pilot's seat and walk along the wing while they were in the air. I think they were crazy. If you want to do stunt plane flying, first learn to fly correctly and safely. Only then can you start developing tricks.