I had 2 each on my front springs. I dont have access to a lift or jack and I had to pick up my plates so I just went to the dealer. It was funny because they pretty much had no idea what I was talking about. After the service tech took a look he came back and told me he hadn't had any other vehicles come back, and thanked me for bringing this to his attention.
My initial reaction to the ride is that it is much smoother on bumps and expansion joints and crap on the high way. I can't really tell whether it handles the corners better yet or not, but I suppose I should give it another day to settle then I'll check it out again.