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