1-8
: 1s lead down the middle, lead back to face 1st corners
9-16
: 1s set to 1st corners & dance a full diagonal reel of 4 with 1st corners
  (1s end facing 2nd corners)
17-24
: 1s set to 2nd corners & dance a reel of 4 with 2nd corners (1s end in
  middle)
25-32
: 1L dances RH across with 2s **while** 1M dances RH across with 3s then
  LH across to places