Yeah I was surprised to hear how soft the front springs are. Fronts appear to be progressive based on their shape while the rears are linear. The person I spoke to at Eibach said the springs are linear so they may be linear.
I've put approx. 200 miles on the Eibachs and I'm pretty pleased with them. Slightly stiffer ride, better body control and just enough lowering (for me). They're cheaper than the H&Rs to boot. So all in all - I'm very satisfied with my choice!