have test driven it already. ride is quite choppy on uneven roads. im on maxspeed springs which costs roughly 40% cheaper than the HNR and they both ride almost the same. im happier with the maxspeed since they give a more even stance than the HNR where the rear is raised a bit than the fronthavent test-driven it yet. it's a friend's car and according to him, ride became a bit choppy.
My car is running the mazda speed lowering springs. They are either Eibach or Racing Beat. The ride height in my option is perfect. They have harder spring rates not sure what the rates are but I auto-cross it and the car runs extremely flat with them. I went with these because I kept the factory warrenty and they were fairly well priced for that fact. Plus they are Mazda BLUE! They look pimp under the car (always a bonus)