On 2nd chord 3c+4c cross to (1,2,3x,4x)
(Hint: In all ½ turns and ½Reels face dancer of own sex).
»Easier version« for [17-20]: As couples meet the W join NH with P who maintain RHA (continue as described)
note: at each 2nd turn the dancing couple casts to the bottom and 3c steps up to start again
On 2nd chord 3c+4c cross (1,2,3x,4x)
Note: Cosh explicitly tells 1c to pass Lsh in [9-24]; however the Rsh pass is quite common, and nicknamed »Mairi's Divorce«.