Watch excellent demonstration and listen to world class instruction from former Auburn University legendary swimming coach, David Marsh. After 17 seasons at Auburn he is now the Director of Coaching at SwimMAC Carolina. Check out some great stroke drills for the Butterfly.
The Single Arm Drill which emphasizes full body movement. It allows you to bring your hips up and it works well as a warm up. Next is the Opposite-Arm-Up Flow Drill which keeps the swimmer in a more realistic flow of a race. This drill is higher tempo.