The total movement in one direction will be twice the offset distance when {HEAD ~ the pin} is rotated {TAIL ~ a full 360 degrees} 
is rotated
The total movement in one direction will be twice the offset distance when { HEAD ~ the pin } is rotated { TAIL ~ a full 360 degrees }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL