From the Olympics Channel; Elizabeth Beisel explains an awesome drill.

Elizabeth Beisel came to our pool to work with our Age Group and Senior swimmers. It was awesome. She taught this drill to our swimmers and it is still in the toolbox of approved drills for Age Group.

This is an excellent drill for swimmers that are focusing on racing, training, and mastering their strokes.

I would avoid this drill for all Developmental groups or entry level competitive groups.

If you feel the value of the drill outweighs the struggle and difficulty for your youngest swimmers keep the moment of active doing Titanic to a minimum; like from the flags to 1/2 way, or only to 1/2 way.