The friction damper controls the lateral movement of the hitch arrangement thereby reducing any tendency to snake. Pitching is reduced by the bridge formed by the rubber block, which is designed to stay virtually parallel to the road at all times. The rubber block action also tends to reduce sinking at the hitch by transferring some of the weight to the tow car’s front axle and some to the caravan’s axle. The result is an effective reduction in the caravan’s nose weight. The actual amount will vary from outfit to outfit but could be in the region of 15 kg so do bear this in mind. It could even save you having to fit rear spring assisters to your car. On very hard braking it will greatly reduce snaking.