1-8
: 1s set, cross down RH to double triangle position with 2s+3s & set, 1s
  turn 1st corners RH into 2nd place opposite sides
9-16
: 1s dance reels of 3 on sides passing 2nd corners LSh & end crossing
  to 2nd place own sides
17-24
: 1s dance reels of 3 on own sides passing 3rd corner RSh
25-32
: 1s turn 3rd crnrs RH into lines of 3 across (1M between 2s facing down
  & 1L between 3s facing up) & all set, 1s pass RSh & cast round 4th
  corner to 2nd place
33-40
: 2s+1s+3s circle 6H round & back