Reporting back my findings:

Just got back from having the stock "4 bump" spring pads swapped out for "1 bump" pads on my 2000 E430 Sport with Eibach Pro-Kit springs. WOW! Dropped it another full 1/2"

Now looks like it is supposed to with those 18" wheels. You can also really tell it is lower when you drive it. Ride is exactly the same as before.

Now I have to find someone who can align it. M-B dealer could not get their alignment machine heads to clamp on the wheels. Any ideas out there for alignment?

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2000 E430 Sport (European Delivery)
Brilliant Silver/Ash Leather
Brabus Leather/Wood Sport Steering Wheel
PowerChip
Euro Front Bumper Strips, Debadged
E55 "Carbon Fiber" Door Pillar Trim
E55 Tail lights
E55 AMG/Bilstein Shocks
Eibach Springs, #1 Pads
H & R Sway Bars
Speed Yellow Calipers
18" x 8" SSR Integral Wheels
245/40ZR 18 Bridgestone Potenza RE960AS Tires

1986 Porsche 944 Turbo
88K miles