Did you drive 400 miles on egg shells? You would certainly be hitting the bump stops up front. At this height, the rolling edges of your rear bags are going to be nicely mashing into the top face of the wheel carrier in which the bag sits.

For those who want to lower thier X safely: once you go beyond the factory "access" height, start seriously considering removing the ping tanks (aka accumulators). This will limit the amount of compressible volume for each corner, making the bag react faster (eliminating the bouncy/mushy ride often associated with extreme drops), but still maintain a comfortable ride for everyday driving.

__________________