Just to clarify, I'm in the camp that likes softer spring rates and repaired suspension geometries. I've edited my type-o in the above post
Another thing to ask yourself when reading all of these opinions is, what do you want to do with your car? My "race car" is also my daily driver. I'm rather glad I'm not running the spring rates that RSR has, but can definitely say that out on the track, I wished I had RSR spring rates!
Mats alsways brings up the poing that your alignment goes wonky if you brake hard with softer spring rates, which I think must be true. So even though with the D-spindles my car seems to grip a lot better, I'm sure I'm giving up some braking performance. But I'm tracking my car about .05% of the time I'm driving it, so that compromise is OK.
What are your goals? Can you see why everyone is arguing here?