3s & 4s start on opp sides
On 2nd chord 3c+4c change sides to 1,2,3x,4x. Centro-symmetrical dance.
To: Auckland Region President, Campbell MacKay, nov. 2003
Note: the crossings [17-28] all start with 1M crossing, 1W setting
Note: Cosh explicitly tells 1c to pass Lsh in [9-24]; however the Rsh pass is quite common, and nicknamed »Mairi's Divorce«.