From any 4-dancer formation with at least two dancers facing (e.g. 8 chain thru): Those who can (i.e. who are facing directly) Pass Thru, those now facing out from the flagpole center of the set Run into the other 2-dancer position (if adjacent dancers are both facing out this will be a Partner Trade). From an 8-chain thru or 1/4 box this results in a DPT.
This definition is from SCVSDA Note Service by Bill Davis.
It is provided here for informational and educational purposes only.