defining waypoints for {TAIL ~ segments} of a path and sending the path data in {HEAD ~ segments} to the second wireless communications device; and 
defining waypoints for { TAIL ~ segments } of a path and sending the path data in { HEAD ~ segments } to the second wireless communications device ; and
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH