1-8
: 1s cross RH & cast 1 place, 1s pass RSh into double triangle position &
  set
9-16
: 1s set dancing round each other & set on other side, 1s cast RSh
  round 1st corners into lines across (L between 2s, M between 3s)
17-24
: 1s pass RSh into double triangle position (up/down) & set, 1s set
  dancing round each other & set at other end
25-32
: 1s cast LSh round 1st corners into lines on opposite sides, 1s cross RH
  & cast to bottom