I'm a huge fan of clear. I will use it jist the way it comes from the bag for a specific alloy, but I mix it with most of my other colors for a mottled or translucent shade. I've found that clear just gives very good (and easy) full coverage itself and helps any other color cover.Jim and Walter have me about convinced to get some clear. I like having bullets that look like bullets.
On Prismatic's website they will describe their "candy" colors as having clear added. Or at least that's how I interpret it.