One of the biggest problems at our field is people moving up to more capable airplanes when they really should be building skills with the trainer. I presume this occurs at most fields.

I hot-rod a PT20 around the field now doing every maneuver I can think of then use this technique to train with. The implication to new fliers is not to move up until they can hot-rod too. Trainers can do more than circles but people need inspiration to expand their skills. This technique is ideal for both inspiring and training.