1-8
: 1s set, cross RH, cast 1 place, cross LH to 2nd place own sides facing
  out
9-24
: 2s & 3s petronella turn into centre & set, **while** 1M casts down as 1L
  casts up & cross (M between 3s & L between 2s)

: 2s & 3s petronella & set **while** 1M casts up & 1L casts down & cross
  RH hand (to 2nd place own sides)

: 2s & 3s petronella & set **while** 1M casts up & 1L casts down & cross
  between 2s/3s

: 2s & 3s petronella & set **while** 1M casts down & 1L casts up & 1s turn
  LH to face 1st corners
25-32
: 1s turn 1st corner RH, partner LH, 2nd corner RH & cross LH to 2nd
  places own sides