If it drives lovely ...i should leave it and save yourself the brass . As soon as i get the chance i will be putting mine back to stock
Mine is lowered 1 spline at the back and then turned on the front non adjustable, looks good rides ok but if I had my time again I would leave it stock as it would appear that high is the new low. My rear end sagged a bit due to the furniture and everything else at the back, I raised it level, it was easy, I think that if I had stock hight saggy ass bus thats what I would do, raise the back rather than lower the front.
Every mm you lower it is a mm less distance to hitting bump stops, rubbing or banging. Why not tweak the back end up a bit.. Eventually your anti roll bar will poke down and swipe off the tops of road humps and even steeply cambered narrow roads. Then you end up with coilover shocks to stiffen it up when riding 3 inches lower than stock..