Interesting comments on the 'Vette, but not entirely unexpected. I'm not sure what tires they're running on the Z06, but the run-flats on my C5 cause a kick, to the point that I can actually feel the rear lift over railroad tracks at a local intersection coming out of a turn at low speed - when driving in the rain, extra creepy! Tires would be the prudent place to start if following C&D's recommendation, although I replaced mine with the same tire for the peace of mind of having run-flats since I used to drive 325 mi., through long stretches of desert, to Laughlin, NV, and sometimes alone.
As you know, I also used to get a "kick" outta my C prior to adding the springs & sway bars... now it's a kick of a different kind- accompanied by grins
. But I also look forward to changing my tires to see what, if any, further ride improvement I might gain after your glowing reviews.