The Standing Scull Drill — also known as a Tornado Drill — is excellent for developing a more sensitive swimmer’s feel for the water. With a better feel for the water, you’ll gain traction and a stronger underwater stroke. Sheila explains this drill in depth in both Swim Speed Secrets and Swim Speed Workouts.
Finally, watch Olympic swimmer and multiple medalist Peter Vanderkaay demonstrate his own tornado. Before watching, please read this brief note about how the Swim Speed videos are intended to be used.