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

1-8
: 1s & 4s dance dance round each other RSh, cast down/up 1 place & dance
  LH across 1.1/4 times to face corners
9-16
: 1s & 4s turn corners RH, dance LH across 1.1/4 times & turn next corner
  RH to end 2 4 (1)(3)
17-24
: All dance RSh reels of 4 on sides
25-32
: All set, 4s & 1s dance 1/2 Figs of 8 round end couples & cross RH to
  sides to end 2 4 (1)(3)