does not mean that the starting formation must consist
entirely of Couples. It simply means that somewhere in the given call
someone will have to Replace an Arm Turn 1/2 with a Partner Trade.
For example, from a 3 & 1 Tidal setup, on a Two-Faced
Spin Chain The Line
some dancers would start with a normal Arm Turn 1/2.
Our point is that the caller can say 'Two-Faced anything
of 'Some Work Two-Faced, all anything
'. EN: 80