tuning suspension can be tricky as springs are just a part to decide on which to use.
You need to also realize that weight of shock oil, shock piston used, how many shock spacer clips or amount of threads was made on the shock body, and what holes you are mounting to on the shock tower and suspension arm....are all types of adjustments on the shocks and how they perform.
How hard or soft the springs you choose are just the beginning
It would be nice to find some sort of detailed explanation of tuning the suspension in different ways.....as this still has me confused at times. I just know what I have been doing on my own stuff and what works for me and my and my driving style.