FWIW - I've been on MPP Comfort non-adjustable coilers since the beginning of 2020. I just installed my Eibach sway bars this past Saturday. While I did notice a bit less of independence between the left and right, I didn't think it was significant. I even asked my wife, if she thought the car was more "rough" on a 30 mile drive to my parents house, which she would be the first to notice, but she said it felt the same. I used the center hole on the front bar, and the "stiffer" hole on the back. This resulted in less understeer, and more neutral go kart feel. I am happy with how the car handles now. Ride is definitely subjective though.