*For two 4 couple sets (A & B) side by side, A on the left seen from the top*  
*`4Wa...4Ma   –   4Wb...4Mb`*  
*`3Wa...3Ma   –   3Wb...3Mb`*  
*`2Wa...2Ma   –   2Wb...2Mb`*  
*`1Wa...1Ma   –   1Wb...1Mb`*  
*`Top`*

1–
: 1c & 4c in each set cross down/up into Fig8 round 2c/3c, giving RH to start
9–
: On diagonals (1Wa+2Ma, 4Wa+3Ma, 1Mb+2Wb & 4Mb+3Wb) set | change pl RH ; set | change pl LH.
  Cnrs face cclw, middles face in to other set
17–28
: *Big Spiral & Wheels:* Cnrs (1Wa, 4Wa, 1Mb & 4Mb) chase{12} once round cclw to places **while{12}**
  middles (2Ma+3Ma+2Wb+3Wb) RHA in centre ; 2c+3c in each set LHA ;;
  top & bottom in centre (1Ma+2Ma+1Wb+2Wb & 3Ma+4Ma+3Wb+4Wb) RHA
29–32
: All turn P RH
33–
: All set | cross RH with P, also passing RH in centre (all M are now in set A, all W in set B) ;
  all turn new P RH *[NB video & figure have RH, text has LH]*
41–
: In each set new 1c+2c & 3c+4c set NHJ | &frac12; RHA ; set | cross RH. Ends retain RH for repeat
: Finish (2,1,4,3) *Ma...Mb&nbsp;&nbsp;–&nbsp;&nbsp;Wa...Wb*
: Repeat once to regain original P in other set; after 4 times all are in original places.