Does anybody know the performance difference between the front and rear Springs used in the option package for the Limited verses the standard springs?

“Progressive rate springs provide a consistently comfortable ride and help maintain consistent handling over varying load conditions. They also reduce the vehicle's ride height with load. Rubber upper and plastic lower spring seat isolators reduce road, axle and suspension noise transmitted to the passenger compartment. Different springs are used depending on the vehicle options.” http://www.allpar.com/model/jeep/liberty.html

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2015 Ram Ecodiesel/Big Horn/4x4/Quad Cab
2016 Arctic Fox 22G/Onboard 2500 LP Cummins Onan Generator/160 Watt Solar Panel

I took the road less traveled. Now I'm LOST.