It is about time to replace the rear struts again. Are the KYB rears any stiffer than OEM or Monroe? I kept the OEM for 150k with Sumo spring helpers and the Monroe replacements have 75k on them and are starting to get softer. I do believe the Monroe held up better than the OEM under heavy loads. So the question is, are KYB any stiffer or do I have to cough up an extra $300 for the Swift springs to make a real difference? I am tired of going on road trips with the back end sagging and blinding oncoming cars with my low beams. I have thought about the CRV frankenstrut, but I don't want the rear riding high all the time it is unloaded.