For a functioning HSC/LSC circuit! The stock charger 2.1 damper has very weak damping, there are only 3 shims in there. I add a crossover shim stack that actually does something when you turn the dial
I should also note that the top assembly is the version with just LSC adjustment, the "ultimate" version with preloaded HSC dial is not as tunable. You are limited in how big of a shim stack you can install before it is already preloaded by the spring. I have found the best dampers for me have no preload and are tuned with shim...