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- From a one quarter tag formation: Ends of the center wave walk forward around behind the outside pairs. The inside two of the center wave pass thru only with the outside people they face, thus forming three center pairs. These three centers Trade (as in Coordinate) and the very center pair and the lonesome outsides move up to become ends of parallel waves. Finishes in parallel waves.
NOTE: Combination of Chain Reaction and Coordinate.
- Ed Tice 1975
