1-8
: 6 bars Mirror reels of 3 on sides (2s in/up, 1s & 3s cast to
  start), 1s+2s pass to change places as 3s loop into place
9-16
: 1L+2s & 1M+3s dance RH across; all chase clockwise 1/2 round. 1s end
  in 2nd place own side facing down. (3) 1 (2)
17-24
: 3s+1s+2s dance Grand Chain (3s cross RH, 1s+2s change places RH on sides
  to start)
25-32
: All Adv+Ret; 3s & 2s set & cross RH **while** 1s dance down below 3s &
  cast up to 2nd place.  3s & 2s face out