Quote Originally Posted by Kaiser
The cliffnotes version of this is: Spring rate really has very to do with how bouncy the car's ride is or isn't. That's the job of the shock absorber/strut. If the spring is mismatched to the shock/strut, then you will have problems with your ride comfort and handling. Period. End of story. This means matched pairs of springs and shocks are better than cut springs and stock shocks. Also means that single-unit adjustable coilovers will, if properly adjusted, provide the best ride quality and handling of any aftermarket suspension setup. The problem is usually that people don't bother to actually adjust their shock settings.
Not disagreeing, just thought I'd point out, this matching shock to springs thing, it's overrated imo. In general this is true, but its also somewhat of an art and there's some gray. more important, imo, is finding quality dampers that do the job you're looking for.