ORIGINAL: on_your_six
SIMULATOR. Some sims even have videos that tell you how to do an aerobatic maneuver.
Time is cheap in the sim. Practice your landings. Straight lines... be smooth on the sticks.
Actually the simulator is a great tool for working things out because if you sit down and practice for 2 hours on the simulator, you can generally get 2 hour of stick time in, if you go the field for 2 hours you will be lucky to get 30 minutes of stick time in. I remember purchasing the first version Real Flight simulator that came to the market, it had a yellow Extra 330 with red and blue trim as one of the aerobatic airplanes choices and it was not vary 3D friendly, but I spent almost 2 1/2 years on it and wore out three transmitters practicing and playing with it, and then applying what I learned every time I went to the field. Now keep in mind that I had already been flying R/C a great many years prior to buying the simulator but I would say that it improved my game for sure . So in my opinion, it is not a bad way to go for anyone wanting to improve.
Bob