B) I sprang for the PSS by Bilstein; $899 from eshocks.com. The handling is awesome but the ride is really stiff. If soft ride quality is a concern, I'd go a different direction.
:D I am a new sc430 owner; I traded in a Corvette z06. I was looking for a more refined ride and I feel that I got it. The first thing I did was to order the new Bilstein PSS shock/spring system; can't wait to get it installed.