Bouncy and racing suspension should never be used in the same sentance, because a proper suspension setup is never bouncy. If by bouncy you mean harsh, or stiff, THEN youd be correct. Bouncy is what happens when you slam a car on cheapo coil overs and blow your factory struts. On a full bodied coil over setup, if you're experiencing any type of "bounce" then you have something setup extremely incorrect, period.
Just for curiousity's sake, how is it BCs are better quality than D2's and Ksports/etc? I was under the impression they were all made by the Koni (or some other WIDELY known and used shock/damper brand.....trying to find the info again as we speak) factory, using their basic dampers and the only differences being spring rate, the type/size of pillow ball helms joints, and basic housing/height adjuster designs? As a for instance, My D2's have the same adjusters as any other full bodied coil over I've seen for our cars Ksport, Megan and BC included?
Just curious!
-Jake