Rolled: i have driven and sat in one that has TODA Fightex. Also as i have mentioned I owned a set that i had on my civic. That is why i recommend them. Not to say that they are not expensive. But from what i know and the different coil overs i have owned I thought they were the best.
Just trying to help and give my opinion and experience.. I am entitled to my opinion as you are to yours... need to relax dude...
the spring rates do serve a purpose, they are the basic parts of your coil over suspension system which will give you the bound and rebound, what the shock does is control the rate at which it will bound and rebound after going over a bump or groove in the ground... hence the difference in spring rates... normally the heavier the car the heavier the spring to counter act the weight of the car.. that is why they HAVE different spring rates.. there is a purpose..
eg. they have a spec for the spring like 10kg/mm this means you have to put a load of 10kgs on the spring before it will compress 1mm. So when you go over a bump your coil-over spring will travel in comparison to that idea. What the shock does is control that rate, coz you obviously dun want it to rebound at a un-controlled rate otherwise the car will handle erratically. If your spring rate is lower though then the speed at which the spring will rebound is lower as it is not as hard as one with a higher spring rate. So the car will feel a bit more loose after going over bumps, like it travels more in the vertical direction.
The shock is very important like the other guys have said but the spring rate should not be neglected in your decision. It makes the difference between a harder and less harder ride. If you choose a hard spring and your shocks aren't up to the controlling of them then the ride will be compromised. Normally the factory recommended rate is suitable for the shock. 10kgs is what a lot of manufacturers recommend for a sporty/race ride.. thats from Tein and Toda that i know of anyway. i saw others recommending it too...
hope i have been correct in explaining and maybe helped u a bit...
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