From parallel waves or two faced lines: Centers Crossrun and Circulate as the ends side step together and Trade then Circulate. Right hand waves finish as left hand waves and vice versa. Two faced liens finish as two faced lines.
From lines facing out with couples half sashayed: Twist the Line (centers of the line step forward and California Twirl, ends face each other and Star Thru). Then do a Spin the Top. Finishes in a Tidal Wave.
From facing couples: Two ladies Wheel Chain using left hands to cross the set and face out. Men Flip right into partner's vacated spot. Finishes as couples back to back.
NOTE: Another exact equivalent for Swap Around.