The ability to shift {TAIL ~ compression load} is beneficial in {HEAD ~ cool ambient condition regions} where the two cycles could be effected differentially 
The ability to shift { TAIL ~ compression load } is beneficial in { HEAD ~ cool ambient condition regions } where the two cycles could be effected differentially
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH