From any Line of 4.
Centers Cross Run as Ends Run.
A Two-Faced Line ends in a Wave and vice-versa.
According to the CALLERLAB definitions, the Centers pass outside
of the Ends as they Cross Run.
Cross Roll To A Line | Wave is almost always called from a Two-Faced Line.
From a R-H Two-Faced Line, Cross Roll To A Wave feels like a
Turn & Deal and Step To A Wave.
The caller usually says Cross Roll To A Wave when the ending
formation is a Wave, and Cross Roll To A Line otherwise.
Everybody moves toward the Center of the Line.
Switch The Line [C1] :
From any Line of 4. Centers Run as Ends
Cross Run. A Wave ends in a Two-Faced Line and vice-versa.
Run Wild [C4] :
From any Line of 4. Cross Roll To A Line twice.