A. All Diamond Circulate; new points Diamond Circulate; very centers Drop In (Extend), outside centers Diamond Circulate and Drop In (1/2 Split Circulate) to a momentary column of six with a center wave of four;
B. in the wave Swing then Step and Fold and do two (Phantom) Column Circulates as outsides Squeeze (Trade & Spread) to end in parallel 2-faced lines.
Also from: facing diamonds, hourglass, interlocked diamonds, facing hourglass, etc.
(Anything) Evacuate After any call that results in a column of six crossed with a wave of four: proceed as in B. above.
This definition is from SCVSDA Note Service by Bill Davis.
It is provided here for informational and educational purposes only.