
I did this as a bit of an experiment to compare my 95K mile kit with the lower mileage one, and I'm pleasantly surprised at the difference. I suspected that although I had 2 broken springs, the OEM springs and shocks were getting 'tired', but I didnt want to compromise the overall daily usability of the car with PSS9's or KW's, so I'm happy as it now feels a lot less spongier, and crashy over bumps and dips\holes in the road, as well as stabler at higher speeds, as I'd expect. I also got the front suspension top mounts replaced as they had seen better days as well.
Grizz recommended getting stiffer ARB's fitted to dial out the body-roll on the standard configuration, without making the suspension stiffer, but I don't track my car, so maybe, but I doubt it.