The Beam Carbon and index bolt set the TRAK & INDX apart from anything else on the market. The structural profile of the Beam Carbon creates a spine and the index bolt enables the user to take full advantage of it to change the orientation of the stabilizer and therefore the feeling of it. We laid the groundwork for two, tried and true settings but there's shades of grey between these black and white settings that may just be the real sweet spot on your bow.