I went with the Smartmadness lowering springs on both of my smarts. The front barely drops at all, and the rear levels out to get rid of the ugly rake. The ride is much better, much less body roll and the annoying bucking between shifts is gone. I still feel that the shocks/struts are too soft. I'd love to do complete coilovers but haven't seen or read enough about them. Wish I could find a pic of the Bilsteins at their lowest. I'd love to eliminate the wheel gap all together. Pic for example:
