The system 2, further comprising a display device in communication with said processor, {HEAD ~ said display device} adapted to display a visual image of {TAIL ~ the shape} of said stump 
The system 2 , further comprising a display device in communication with said processor , { HEAD ~ said display device } adapted to display a visual image of { TAIL ~ the shape } of said stump
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH