1-8
: 1s followed by 2s lead down the middle, 2s followed by 1s lead up to end
  2s in 1st place
9-16
: 2s+1s+3s circle 6H round & back
17-24
: 2s+1s+3s dance Grand Chain (2s crossing to commence)
25-32
: 1s set twice, lead down between 3s divide & cast back to 2nd place own
  sides