{{explanation}}
On second chord cross to (1,2,3x,4x)

1–
: All set to P | 1M+2W & 3W+4M cross RH ; 1W+2M & 3M+4W cross LH | All cross RH (2,1,4x,3x)
9–
: 2c+1c & 4c+3c RHA ; 1c+4c LHA, 1M+4M finish facing out (2,1,4x,3x)
17–
: 2c+1c & 4c+3c Reels4 across: pass Lsh in the middle and cast clw in the loops, reels finish as started
25–
: 1W+4M following & 4W+1M following dance out through end couple, cast L to the other pair's vacant places ; All turn P LH (2,4,1x,3x)