From facing couples, T-bone, inverted lines, magic columns: Those who can Pass Thru and Quarter In [in some cases those who did not Pass Thru must also Quarter In (e.g. from inverted line or magic columns)]; all Pass Thru; all take facing command (e.g. In) if any.
Don Kinnear
This definition is from SCVSDA Note Service by Bill Davis.
It is provided here for informational and educational purposes only.