Hi Luke, I also love dolphin heys! Earlier this year I made a substitution of a dolphin hey for an ordinary hey for 3 (with the 1s acting as a unit). That appears as a figure in several contra dances (e.g. Kittyhawk Hornpipe by Don Armstrong or Nils's Maggot by Martha Wild, where you end up back where you started, 1s in the middle, in a line of 4 to go down the hall, so it's forgiving even if you don't get the hey quite right). I think it worked well for the crowd at the time, but I haven't determined how best to teach the dolphin hey to contra dancers. I used a demonstration. Any suggestions? Yoyo Zhou