2001 Impreza RS sedan
weighed in at 1765 lbs fr/1486 lbs r (54.3%/45.7%) (with driver)
5.5k fr/4.9k r Eibach springs (307 lbs/in, 273 lbs/in) on Ground Control perches
215/45/R17 Pilot Exalto PE2 on 17x7 FN01R-C wheels
Whiteline 22-26mm rear sway on 22mm
Stock top hats, stock front sway
Solid end links, poly bushings.
4.75 fr/5.5 r (TFFF)
I think I might be a bit underdamped... I run softer setting than many people with lower rate springs anyway.
But if I try to go much more than another turn stiffer I have trouble with the rear end bounding up over bumps and skipping, and I also have trouble finding a good ratio between front and rear and I get a lot of pitching back and forth on wavey highways.
I'm about to take it all apart and install Bakemono camber/caster plates all around. I had thought about going to softer springs, too, but they seem fine as long as I don't set the dampers too stiff.
I didn't see many people in this thread running springs around 300 lbs/in, and the few that were seemed to have awfully stiff settings dialed in on the D-Specs.