1-8
: 1s set, cross RH to face 2s, 1s+2s set to each other on sides & change
  place with 1s dancing between 2s into double triangle pstns
9-16
: 1s dance Double Triangles & end facing 1st corners
17-24
: 1s turn 1st corner, partner, 2nd corner & partner to end 2nd place
  opposite sides
25-32
: 2s+1s+3s Adv+Ret, 1s turn RH 1.1/2 times