From any Line of 4.

Centers Run as Ends Cross Run.

Ends in a Line.

before Switch The Line   after

before Switch The Line   after

• You may wish to think of Switch The Line as (do your part) Swing-Slither.
• At A2, Switch is restricted to starting only from a Wave.
• According to the CALLERLAB definitions, in cases where dancers would collide, those doing the Cross Run move outside of those doing the Run; otherwise, all the usual shoulder-passing rules apply.

Grand Switch (The Line | Wave) [C4] (Lee Kopman): From a general 1 x {n} Line. The #2 dancers (those adjacent to the Very Ends) Run as the others Grand Working As Ends Cross Run. Ends in a 1 x {n} Line. Cheat: As one movement, Swing-Grand Slither.

See also Cross Roll To A Line | Wave [C1].