Hey guys, I'm upgrading my blown kyb gr2/eibach sportline lowering spring set up. I have done research and I'm set on buying BC coil-overs. During my research I read an old post by Luni with a link stating how much of a difference the swift spring upgrade on the BC coil-overs are and I too would also like to use swift springs. But to be honest I don't know anything about springs and rates. I don't race. just like boosting around town and curvy mountain roads. Can someone please help me pick a suitable spring rate?