1-8
: 1s set, cast 1 place, set & cast down behind 3s
9-16
: 1s lead up to top & cast to face 1st corners, set to 1st corners & set
  to 2nd corners
17-24
: 1s+2nd corners circle 4H round & back
25-32
: 1s dance R&L with 1st corners (normal Rights & Lefts but on a diagonal)