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- From lines facing out: Pair the Line In -- Centers "backtrack" (U-turn back by turning in toward each other). Ends Fold behind the centers. Finishes in double pass thru formation. From lines facing in: Pair the Line Out -- Centers backtrack to face out and ends Fold in behind them. Finishes in completed double pass thru formation.
NOTE: Also called Pair It In/Out; Lines Pair In/Out.
- George Elliott 1958
