A pattern is usually determined by the winds. The take offs and landings are all done going the same direction which means that all pilots are not expecting a plane to come from the other direction unless an emergancy is declared. It does not mean that you have to fly in the pattern during the entire flight. If there is an area that you can do your aerobatics, then that is where you want to go. When you are done, then you need to reenter the established pattern to land. Good Luck, Dave