From applicable 4-dancer (and 8-dancer) formations.
Centers (Touch, if necessary, and) Cast Off 3/4 as Ends 1/4 Right.
The Cast Off 3/4 can be a Touch 3/4, Right Arm Turn 3/4, Left Arm Turn 3/4,
or 'Push Cast' 3/4.
The original definition was written such that the Cast was always to the Right.