ericdee, I have not. I am still in a quandry over the suspension. Like everything else, you run into opinions of this will fix it and others saying that will cause this, that and the other.

I had understood that the later model SL's (560) had solved the problem, ergo..why not put those springs on? Answer, according to one source, 560's have a pneumatic suspension. Oh well, why not lower it with a firmer spring? You then screw up other parameters. Oh well, what about simply a firmer spring the same size? Have yet to find out if one exists.