ECS
look at :
Combining All The Swing Dancing Moves! | ExpertVillage Videos
the couple is travelling around.
fw : ts ts rs
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WCS
look at:
How to Put Patterns Together for West Coast Swing Dancing | ExpertVillage Videos
the lady is moving in a slot, man is staying in his spot.
fw : rs ts ts
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A lot of moves are similliars. However moves like sugar push, circle are more often used in wcs.
Both of them - ecs , wcs may include 8 count steps in certain moves/
