I have the same pad set-up that you have (2-3). The reason I picked that set up was because I did not want the rear to go too low. Since you can not adjust the rear camber and going any lower would make the car look like this /-o-\ from behind. Even with the 3 bump set up in the rear the car has a slight (-) camber. However, even if you look at the stock MB's, they also have a slight camber problem, specially if they are full of people. If you want it level, I would go 3-3 unless you want a slammed look and don't mind changing tires more often.