Does anybody have any experiene with Koni Sport shocks on the W202 (C-Class) or W210 (E-Class) cars. I'm considering them for my '99 E430. I used Koni's on my BMW's and they transformed the cars, but have stuck with Bilstein's on the Mercedes over the years due to the gas pressure design. Koni offers a gas pressure sport shock now and I thought Koni might have an edge for sporting handling.