what is on the inside of the auto balancers? Are there like ball bearings that roll around in there? If that is whats in there how close of a tolerance is there will a small dent stop them from working?:+ :+ :+
Check out the Centrematics website. They have a good break down and description of their products. Also veiw the vidieos which show the system in action.
It's small steel shot in oil. A "small" dent should not harm the operation since the shot only rolls through the tube at low speeds before the balancing action starts.