*On 2nd chord, 3c & 4c cross to opposite sides (1,2,3x,4x)*

1-
: 1c & 4c cross RH | cast inwards (2c & 3c out) ; 1c+4c LHA (2,1x,3x,4)
9-
: 2c+1c & 4c+3c RHA, 1c & 4c end facing down/up on sides ;
  1c & 4c pass LSh, loop LSh round cnr on same side, pass LSh to face 2c/3c on sides
  **while{4}** 2c & 3c set adv on diagonal | retire (2,1x,3x,4)
17-
: 2c+1c & 4c+3c turn 1&frac12; BH on sides and open out | 1c+2c & 3c+4c circle4 to L, end facing down/up NHJ with P (1x,2,3x,4)
25-
: *Through the mirror rondels:* 1c+2c & 3c+4c each start rondels with 2c & 3c making arches on [1]. On [2–3] 2c & 3c continue as normal but 1c+4c &frac12; circle4 to L to join other rondel for [4–8] with M making arches on [4] and 2c & 3c again making arches on [7] to finish as (2,4,1x,3x).