From a right-hand box circulate: Extend the Tag; Centers Hinge as outsides Face Right *this is identical to Follow Thru).
From a left-hand box circulate: All Extend; centers Hinge; then (depending on where you saw it defined) the outsides Quarter Left -- identical to Follow Thru again -- or outsides Quarter Right to give a slightly different meaning to the overall call than simply Follow Thru. Time will tell.
This definition is from SCVSDA Note Service by Bill Davis.
It is provided here for informational and educational purposes only.