I wouldn't be too concerned about the pads, quite yet. The pad system is used by MB to compensate for the differing weight of powerplant options, optional equipment such as power windows/seats/sunroof even the trim and body kits of the car, so the lift or lowering via the pads is really just fine tuning and do not amount to a great deal. We're talking millimeters, not centimeters in difference. Also, the vehicle will settle down on new springs and shocks after a few days, so the initial look you see at the shop might drop even further later.