Having gone to poly lowers on the 91, I can say, it's subtly different for different road conditions than rubber. For slow moving up down dips, they actually feel softer as there is no bushing twist to add 'spring rate'. Other conditions like pot holes where the tire is also jarred rearward during the impact, they feel more harsh. So really depends on what you roads are like where you live. Same setup maybe be horrible one place and perfect somewhere else.