1-8
: 1s lead down (2s step up 3-4), 1L turns under 1M's right arm, 1s lead up
  to 2nd place finishing BtoB facing opp sides
9-16
: Set as in Double Triangles, all advance (PdB) to invert triangle, set,
  invert triangle to end 2s+3s on own sides turning Right about to face
  in **while** 1s finish BtoB facing out
17-24
: 1s turn 1st corners RH, pass RSh, turn 2nd corner RH, pass RSh to end in
  2nd place own sides
25-32
: 2s+1s+3s circle 6H round to left (6 steps), bar 28 pass R foot over L,
  pivot and chase anticlockwise to own sides