The most frequently asked question your correspondent and his associates answer about biomechanical efficiency is (paraphrased) "What component, or combination of components, of a horse's mechanics other than speed is most likely to tickle your fancy?" After almost 40 years of evaluating thousands of horses from four continents this is how we answer the question with some facts-those facts being actual race records. What better way to go about this than to assemble a test group of peers and apply those suspicions to that group? Thus, for this study we...