The relationship between the compensated write power at each Pcn value and evaluated value Smn is examined to determine the Pcn that maximizes the linearity of the relationship between and {HEAD ~ Smn}, as {TAIL ~ the optimum write power compensated value PcO} 
The relationship between the compensated write power at each Pcn value and evaluated value Smn is examined to determine the Pcn that maximizes the linearity of the relationship between and { HEAD ~ Smn } , as { TAIL ~ the optimum write power compensated value PcO }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL