[Callers] 4 couple set Chorus Jig

Hi callers, I've been looking for a funky dance, a variation on Chorus Jig for 4 couples, alternating, everybody turns contra corners. Does anyone know who to thank for it? (I remember dancing it at one of the Monte Toyon camps (Spring Fever or Queer Contra Camp) but I can't remember which! For bonus points, I'd love to figure out whom I learned it from.) The dance goes like this: A1: top couple down the outside and back B1: top couple down the middle and back, cast off with 2s C: all turn contra corners in the middle (All turn partner right 3/4, 1st corner left 1, parter right 1/2, 2nd corner left 1. It looks like a wave of 8 down the middle.) B2: all balance and swing partner; end swing facing up (?) (? = Do you alternate facing up/down?) Then, every other time, alternate: the bottom couple goes up the set and casts off with the 3s. So the 1s and 2s just change places with each other, and the 3s and 4s change places with each other, and everyone has a turn. Thanks, Yoyo Zhou