As {TAIL ~ the gripper} approaches the knife, the drag may be placed on the gripper thereby compensating for pull of {HEAD ~ the blade} 
As { TAIL ~ the gripper } approaches the knife , the drag may be placed on the gripper thereby compensating for pull of { HEAD ~ the blade }
OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD