Damper rod forks are notorious for being both too harsh yet too easy to bottom. This is the nature of damper rod fixed orifice forks.
Cartridge Emulators make damping rod style forks perform like well-tuned cartridge forks. These tunable valves sit on top of the damping rods and are held in place by the main springs. This makes them both simple to install and completely tunable for all conditions and rider preferences.