1-4
: 1s+2s set & mirror Link (1s dance down, 2s cast up). 1s finish facing
  out.
5-8
: 1s+3s set & change places on the sides (Men LH, Ladies RH). 3s end
  facing out 2 3 1
9-16
: All dance mirror reels of 3 on the sides (3s dance/up to start)
17-20
: All set, Adv+Ret (1 step each)
21-32
: All dance R&L for 3 couples. 2 3 1