1–
: All set | cross RH ; chase clw half round (4,3,2,1)
9–
: 4c+3c & 2c+1c RHA ; ½Reel4 on the sidelines
17–
: 1M+2W cross RH and set **while{4}** 1W+2M set and cross RH ; 1M+3M cross RH and set **while{4}** 1W+3W set and cross RH
25–
: 1M+4W cross RH and set **while{4}** 1W+4M set and cross RH ; 2c+3c+4c+1c turn BH 1½  (2,3,4,1)

{{explanation}}
Note: the crossings [17–28] all start with 1M crossing, 1W setting