Agreed Peter, I wasn't really clear enough (attempting to be brief!)
The shocks would only 'jack down' over a series of bumps if in fact the rebound damping rate is too great, though this will be proportionate to the bump rate, and clicks, at whatever bump/rebound ratio the shocks are built to. Even if this were to happen, as soon as steady state (smooth surface or car stationary) the springs would return the car to the ride height they normally achieve.
Also thanks for the clarity re the spring issues, learning all the time...
