1-8
: 1s set, cross down RH, cast behind 3s, meet & dance up to end BtoB
  facing opp sides
9-16
: 2s+1s+3s set as Double Triangles, all set advancing & pull back RSh to
  invert triangle; 1s (outside set) dance RH across with corners
17-24
: 2s+1s+3s set in inverted Double Triangle, all set advancing & pull back
  RSh to Double Triangle position; 1s (in centre) dance RH across with
  corners & 1s pass RSh to 2nd place own side
25-32
: 2s+1s+3s circle 6H round & back