From parallel waves or two faced lines: Centers Run to nearest end. Ends Hourglass Circulate. Finishes in Hourglass (or irregular Hourglass) formation.
COMMENT: "Switch" ordinarily means (from a wave or line) "Ends Crossrun and centers Flip into vacated end positions."
Sandy Knowles 1975
This definition is from The Handbook of Modern Square Dancing by Jay King.
It is provided here for informational and educational purposes only.