Hi Robby. Regarding Konis on the 190SL, back eons ago when I bought my 250SL I looked into Konis and drove a 250SL equipped with Konis. In my car with the oem Bilsteins the suspension had tremendous response to bumps, dips, etc., especially in mid-corner. The Koni equipped car was slow to respond by comparison. The reason seemed to be that the Bilsteins, with the characteristics of their gas pressure design, added a rising rate effect to the suspension that the Konis did not. I've stuck with Bilsteins on Mercedes ever since. On the BMWs I owned, they were not using a gas pressure shock, so the Konis performed wonderfully. However, on your 190SL, with the shortened springs, and with what I believe you are trying to improve (track preformance) perhaps the Konis, which are adjustable, are the right choice. I don't really drive track events any more and I am interested mostly in road performance, with all the variables that introduces. I have noted that Koni has developed a gas pressure design very similar to the Bilstein in the recent past. What I am trying to find out is 1) Do the Koni shocks (supplied only in their Sport version for the E430) cause any deterioration in the "quality" of the ride. By that I don't necessarily mean the firmness, as I expect they may be firmer, but their response time and whether they add harshness and 2) Do the Konis offer an improvement in handling (response in transient manuevers, roadholding over mid-corner bumps, whoop-de-dos, etc.). Thanks for the advice about Ed Ayre; I'll try to contact him.