compensating for {HEAD ~ thermal mismatch} between the master element and {TAIL ~ adjacent portions} of the mold 
compensating for { HEAD ~ thermal mismatch } between the master element and { TAIL ~ adjacent portions } of the mold
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH