{{explanation}}
A. For 1st time through:

1–
: 1W with 1M following cast to 2plx (2c up) ; 2c+1c RHA
9–
: 1W with 1M following cast to 3pl (3c up) ; 3c+1c LHA (2,3,1)
17–
: 1c set | turn RH {4} | lead to top (3c down)
25–
: 1c cast off | ½ Fig8 up | cross RH (2,1,3)

{{explanation}}
B. For 2nd time through:

1–
: 1M with 1W following cast to 2plx (2c up) ; 2c+1c LHA
9–
: 1M with 1W following cast to 3pl (3c up) ; 2c+1c RHA (2,3,1)
17–
: 1c set | turn RH {4} | lead to top (3c down)
25–
: 1c cast off | ½ Fig8 up | cross RH (2,1,3)