Longways for as many as will

   A1    8  First man casts to second place
         8  First man gypsy with partner (left)
   A2   16  First lady the same
   B     8  Right hands across halfway, and turn single left
         8  Left hands across halfway, and turn single right
   B    16  Double figure-eight all the way
            (i.e., second couple cast while first cross up).