1-8
: 1s lead down the middle & back to top, remaining in centre facing up, 2s
  step up Bars 3-4 & face down (1s now between 2s)
9-16
: 1s+2s turn 3/4 NH (Ladies RH, Men LH), 1s+3s turn (Ladies LH, Men RH);
  2s+1s+3s Adv+Ret
17-24
: 2s+1s+3s set, cross RH & chase 1/2 round back to own side
25-32
: 3s+1s+2s set, cross LH & chase 1/2 round back to own sides. End 2 1 3