Generally, the read/write ratio is such that the advantages of limiting {TAIL ~ the loss} to approximately three entire time slots every time a write is performed, greatly outweigh the effects of {HEAD ~ increased collision rates} 
Generally , the read / write ratio is such that the advantages of limiting { TAIL ~ the loss } to approximately three entire time slots every time a write is performed , greatly outweigh the effects of { HEAD ~ increased collision rates }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD