Quote:
Originally Posted by geraintthomas
Dampening adjustments are on most coilovers which stiffens or softens the ride though the damping of the shocks  hence the dials on top of the struts of most coilovers |
That only controls the movement of either the compression or rebound of the shock through the valve in the shock body itself. You can slow or speed the movement but it won't change the ride quality.
It's the spring rates and how they're wound which affect the ride. Too stiff a spring and you'll bounce everywhere, too soft and you'll wallow everywhere and no amount of damping adjustment will get that back. Think of the damping as fine adjustment.
For daily driving I wouldn't be putting coilovers on.
Good explanation here:
How A Coilover Works - Super Street Magazine