Flare the Star

From facing couples: all make a right-hand star, and turn it about 1/2, until the original beaus are on the other side. They leave the star by flipping away to the left and continuing to turn left until they can Courtesy Turn someone coming to them. After the original beaus have left the star, the others continue turning with each other until they are back on their original side, at which point the are Courtesy Turned.

This is a zero for the belles, and exchanges the beaus with each other. This may be a useful check when doing the call with a lot of phantoms.

For those who require a more precise-for-challenge definition, here's one from Scott Morton: 1/2 Reverse Swap Around, Counter Rotate the Diamond 1/4, Reverse Flip the Diamond, and Chain Down the Line.