The postulation of Bernoulli's Principle for creating dynamic lift is inappropriate for hypothesizing about swimming propulsion. Evidence now is available to refute the original hypothesis of its appropriateness. It is a tragedy that it has remained popular for so long for it has lead those who "reason" rather than test techniques down an incorrect path of inquiry and postulation. A better theoretical basis for propulsion needs to be formulated. Bernoulli's Principle cannot account for what happens in swimming propulsion. Sprigings and Koehler (1990) reacted to the lift-force-only postulation as follows: " . . . to dwell exclusively on the lift component without any attention to the drag component would be an analytical blunder