From parallel 2-faced lines and some 3 x 1 lines: Infacing couples 1/2 Circulate, 1/2 Tag, 1/2 Trade, others 1/2 Tag and Face In. Essentially the same as Mini Busy [A-2].
Dick Han
This definition is from SCVSDA Note Service by Bill Davis.
It is provided here for informational and educational purposes only.