applying a negative stylus voltage at a curved tip of a stylus, wherein the curved tip is generally hemispherical in {TAIL ~ shape} and {HEAD ~ the lowermost point} of the tip is curved 
applying a negative stylus voltage at a curved tip of a stylus , wherein the curved tip is generally hemispherical in { TAIL ~ shape } and { HEAD ~ the lowermost point } of the tip is curved
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH