So I'm a little confused. Drove to work today for the first time with the stock rear sway. Ride quality continues to bemuch better than previously. But what's interesting is that bumps which hit bothwheels at the same time are also much improved. I have a couple nasty speedbumps in my parking lot. Previously I had to creep over themwith the rear wheels orelseget slammed in the rear. Now I am able to cruise over them without any discomfort. I was under the impression that sway bars only affect single wheel performance, and are unused when both wheels deflect at the same time. I also noticed riding over train tracks is better. The car used to vibrate over the tracks, now I hardly notice it. I don't get it, but I am happy nonetheless