| Before doing so, here's my scoop. I believe that I am the guy Aliaz is referring to. I live in an area of Texas where nasty roads are too common. In particular, the concrete separation joints are horrible. I was pleasantly surprised by the ride quality of the 510's when I installed them the first time. Their digressive nature allows for superior roll control and a compliant ride. The 510's with 8k/6k Swift springs felt more compliant than my older Powertrix SS coilovers with 7k/5k springs. Feeling that the ride was still a bit stiff, I worked with Terry at Fortune Auto and we recruited another gentleman with a 300zx who lived in Virginia. I then sent my coilovers back and had FA do 2 days of intensive testing and re-valving on his car. All in all, Fortune Auto took another hundred pounds or so off compression and rebound. Now, the softest setting supposedly gives an almost-stock ride (without bounciness) while the stiffest setting drops body roll to almost nothing. FA ran a series of shock dynos on my Powertrix SS and 510 struts as a comparison. I'll see if I can post them. Now I am waiting for the coilovers to arrive before writing a review. Stay tuned!
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