Our exclusive PosiLink drive system features twin double chain driven cams one of which accepts your choice of 6 interchangeable cam profiles (4 included and 2 optional) so you can customize the response from mild to wild. If you want a traditional direct drive feel, use one of the two round cam profiles. But if you dare, try the four eccentric cam profiles with varying degrees of offset for accelerated feel that you can't get from any other hi-hat on the planet.