Which of the following is NOT a characteristic of an ideal reining horse?

In the context of reining horses, agility and speed are certainly valuable traits; however, they are not typically highlighted as primary characteristics of an "ideal" reining horse. Instead, the focus for reining horses is more on control and precision than sheer speed or agility. Reining requires a horse to exhibit smooth, controlled movements that showcase its training and responsiveness to the rider, rather than simply moving quickly or being agile.

On the other hand, a shiny coat indicates good health and proper nutrition, which is essential for any performance horse, including those participating in reining. A good temperament is also crucial, as reining horses must maintain composure and focus during complex maneuvers while under pressure. Controlled movements are vital in reining, reflecting the level of training and discipline needed to excel in this particular discipline. Hence, while agility and speed are advantageous in many equestrian disciplines, they do not align with the specific characteristics desired in an ideal reining horse.