if you go RS*R 'race' the ride is going to be worse than Flex/SS's....the rates are at my site
http://DriftKat.com/Nissan240SXCoilovers.php
I am running 8/6 and only occasionally I wished it were softer...I have the KTS Betas and since I have been experimenting with dampener settings the ride has gotten MUCH MUCH better. (start soft like they say too then work up).
The land yacht ride is great for getting copilot sex

, but now that I am married that is not on the bullet list. My car rides very well though when compared to a 1988 mustang GT and my 96 Saturn on just eibachs and GR2's....my 97 GTI VR6 may have been better if I wasn't on 205/40R17's (dunlop SP8000's)
I stomp over shitty roads though....that was my reason for going 8/6 instead of 6/4 or so. If Joe 4x4 (welcome to South Florida) is going to try and cut me off at the right turn after a railroad crossing while he waits for the light to turn green he picked the wrong guy
On the pro-4x4 note, I helped my dad build a 408 cubic inch 96 Eddie Bauer Bronco (like only 300hp, but 450TQ starting at around 2000rpms at the wheels for towing his boat with) that with a modified 4EOD can spin until almost 60mph (the truck is close to 3 tons)