Springs/Suspension Questions...

[Mjp-GT]

Ok here is my current setup...

FMS C-Springs (cut one coil in the rears (dead coil))
Bilstein 03 Cobra Struts
Bilstein HD shocks
Aluminum Off-set rack bushings

Now...here's my question. First off, I did not achieve the drop I wanted with the C-springs. I can still fit a clinched fist in the wheel gap. Now...I was wondering if my shocks/struts had anything to do with why the c-springs didn't lower it that much? Cause they are much stiffer...would that even matter? I'd like the drop of a Saleen. But if I bought the Racecraft Progressive Springs...would it once again not lower it as much because of my shocks/struts? Also, are the Eibach Sportlines the same spring as the Saleen's?

Also...does the larger wheel have anything to do with the less gap since Saleen's are 18"s and mine are 17"s. I'm not sure if they just have lower profile tires so the diameter is the same, or if it is indeed bigger.

Lastly...would the Eibach Sportlines, or the Saleen Racecraft Progressive Rate's work with my current setup with the Bilstein's? I don't know the spring rates on them and how good they'd match up with my shocks/struts combo.

Thanks a lot,
-Matt