Just finished installing a set of Ohlins DFV revalved for 16kg springs from the factory. At 7 clicks out the overall ride quality is similar to the Bilsteins they replaced which were 8kg front and 6kg rear. The increased spring rate is noticeable over large bumps and undulations but is otherwise relatively comfortable.
The chassis is much more tightly controlled, reacts to inputs faster and has very little understeer. Overall the car feels smoother and easier to drive. I will post some more thoughts on the handling when I've had a chance to go for a longer drive.
Here are the dyno graphs for the front and rear shocks showing 0, 7 and 20 clicks from full stiff. The left axis is in Kgf.