1-8
: 2s & 3s turn RH, 2s & 3s cast to ends **while** 1s+4s cross RH down/up 1
  place to face each other up/down as 2s & 3s face partner across & all
  set
9-16
: 1s & 4s facing up/down dance 6 bars of R&L (starting on sides) ending on
  own sides facing up/down & set to 2s/3s
17-24
: 2s+1s also 4s+3s dance RH across & LH back
25-32
: 1s+4s dance RH across & LH back
33-40
: 1L+4L also 1M+4M Set+Link, 1s & 4s dance DoSiDo. 2 4 1 3