Centers Run as Ends Cross Run.
From a R-H Wave, everyone moves to the Right;
From a L-H Wave, everyone moves to the Left.
Think about moving toward the handhold that you have with the adjacent dancer.
You might even give that dancer a slight tug to get both of you
moving toward the correct direction.
At A2, Switch The Wave may only be called from a Wave. However,
at C1, Switch The Line
(same definition as Switch The Wave) may be done from any Line of 4.
If you start as a Center, be sure to Run toward the nearest End position.
Think about flipping away from the Center.
Ends Cross Run to the far Center, passing each other in the process.
Everyone can Roll after Switch The Wave.
Switch The Wave can also be thought of as a Swing-Slither
(except that everyone can Roll after a Switch The Wave,
whereas those doing the Slither can not Roll).
Switch To A Diamond [A2] :
From a Wave (or any other Line of 4).
Centers Run as Ends do your part Diamond Circulate.
Ends in a Diamond.
Switch To An Hourglass [A2] :
From Parallel Waves (or applicable Parallel Lines).
Centers Run as Ends do your part Hourglass Circulate
(Lead Ends 1/2 Circulate as Trailing Ends Veer Inward to end
in a Mini-Wave with their opposite).
Ends in an Hourglass.
Switch To An Interlocked Diamond [C1] :
From Parallel Lines|Waves.
Centers Run as Ends (do your part) Interlocked Diamond Circulate.
Ends in Twin Diamonds.
Cross Roll To A Wave | Line [C1] :
From any Line of 4.
Centers Cross Run as Ends Run.
A Two-Faced Line ends in a Wave and vice-versa.
This is the opposite of Switch The Wave.