The dance should end with the 1s pulling back right shoulder to swirl into place, optionally they may swirl round each other into place.  Note that the figure in bars 17-24 is quite long, it is based on the Thomas Wilson's (no relation) 1811 description of the figure that morphed into what is now called Double Triangles.

The final swirl into place is omitted by the second couple dancing.  The optional long swirl into place is not performed.  
  
Recorded at the interval at the San Francisco monthly party March 3, 2018.