Installed the 675V medium variable rate coils yesterday on the Treaty Oak Offroad GX. The ride is definitely improved when paired with the MRR coilovers and shocks. The medium variable rate coils only provided about 1.75" of lift vs the 2.25" I had with the C59-314 linear coil, but with the improved ride I think i'm going to leave them. I need reduce a little preload up front by about 1/2" to get a little rake back.