While every performance advantage must be considered, it is important for coaches to evaluate strategies that require more resources but yield a much greater return. As clearly documented, just one week of a comprehensive program of analysis and instruction had an effect on the active drag coefficient that was 3.5 times as great as the effect from wearing a Fastskin®. While swimsuit design may make an immediate but minimal improvement, technique adjustments produce much greater though more gradual gains. Allocating resources for a thorough program of technique analysis and instruction is an effective way to significantly improve performance.