{{explanation}}
3s & 4s start on opp sides

1-8
: 2s & 3s dance out ends & cast back to places, dance out other end after
  passing other partner LH, cross & cast to 1 3 (2)(4)
9-16
: All set, 1s & 4s cross down/up **while** 2s & 3s cast to ends, 1s & 4s
  cast round ends & dance in crossing into a line across with Men BtoB
  facing other partner
17-24
: 1s+4s dance reel of 4 across
25-32
: 1s+4s set to other partners, Men turn right to face each other in middle
  of dance **while** partners set, circle 4H 3/4 round to left to end 1s
  in 2nd place & 4s in 3rd place.  3 1 (4)(2)