4. Next, slide the 12-inch, lighter-rate spring into place. Then slide the nylon slider onto the shock body. I originally installed it (as this photo shows) with the long side of the sleeve up. After a few test runs, I noticed that the slider was bottoming against the adjuster sleeve before the upper spring was reaching total bind. This was limiting the total travel of the softer end of the progressive rate the dual-spring setup provides. A flip of this slider, so that the short side was up, solved the problem.