We should start an experiment. A blind suspension test. Two M3. One with Eibach. One with H&R. Driver have to visually determine which is which. Then driver will drive both car and compare ride quality. (Too bad we don't have the means to pull this experiment of)
Can you really visually notice a .2" difference or is it just in your head?
Secondly, can you tell the ride quality difference or is it again just in your head?
Good luck, I'm thinking about switching from H&R to Eibach too. I'm in the same dilema as you.
