From Parallel Waves or other applicable formations.

1. Lockit;
2. Center Wave Lockit as Others Trade;
3. Center Wave Hinge as Others Step & Fold.

Ends in opposite-handed Parallel Waves. This is a 3-part call.

before Locker's Choice   after Lockit (1/3)   after Centers Lockit as Outsides Trade (2/3)   after Center Wave Hinge as Others Step & Fold (done)

Choice [C3A]: From a Generalized Tidal Line or other applicable formations. Center Line|Wave Lockit and Hinge as others Trade and Step & Fold. A Tidal Line ends in Parallel Waves or Parallel Two-Faced Lines. This is a 2-part call.

before Choice   after Center Line Lockit as Others Trade   after Center Line Hinge as Others Step & Fold (done)

Cross Locker's Choice [C3B]: Cross Lockit; Choice.