Can someone tell me what damping or dampening is? I have tockico illumina's with stock springs. The car has always felt fine with the exception that at slow speeds the car is overly stiff. However, 30k miles later, the handling all of a sudden feels different. So, my question is, w/out saying what my car is doing, what is damping/dampening exactly, and would I all of a sudden get it after this many miles? Thanks.