My 2010 Roadster came with adjustable Koni's, 80-2885 back and 80-2884 front. I want a little more rebound damping on the back because it kicks-up a bit after a bump. As far is I can see on the website, to adjust they have to be fully compressed to latch the adjuster mechanism and than turned. Problem with these is that there is a thick bump-stop rubber on the damper rod under the dust cover. It prevents the damper from fully closing so I cant adjust. The the dust cover doesnis not removable. It appears welded to the top of the rod. Any one know the solution?