{TAIL ~ An equal number} of {HEAD ~ additional write operations} compensates for the additional reads at a later point 
{ TAIL ~ An equal number } of { HEAD ~ additional write operations } compensates for the additional reads at a later point
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH