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

1-8
: 1s+4s set, cast in 1 place & dance 1/2 R&L
9-16
: All dance RSh reels of 4 on sides
17-24
: 4M+1L also 4L+1M slip step to opposite sides (Ladies pass BtoB), set &
  slip step back (Men pass BtoB) & set **while** 2s & 3s advance
  setting, slip step down/up (Ladies pass BtoB), set & slip step back
  (Men pass BtoB)
25-32
: All circle 8H round & back