http://www.e90post.com/forums/attach...1&d=1383611029
When I first installed my springs and lowering perches, I got less than 1" drop in the front. Now after about 10 months the front is drop 1.5" and looks good to me. I still haven't gotten around to new wheels yet, but at least if does not look like a 4x4.
I contribute the additional .6" drop to springs and tophats settling. The lowering perches require new tophats and they were taller than the old ones.