From Golf Magazine (September, 2011)
Exotics clubs by Tour Edge enjoy a cultlike following among in-the-know equipment junkies. The company's latest creation, the CB 4 Tour, is billed as the longest, lowest-spinning Exotics driver ever. There's little doubt that better players and, in particular, faster swingers should benefit from this design. The club's center of gravity, for example, is 15 percent closer to the clubface and 10 percent higher (toward the crown) than previous Exotics drivers. (The clubhead generates spin rates that are 5 to 15 percent lower than the Exotics CB 3 Tour, depending on your swing speed.) The effect should be a penetrating flight and more chances for shotmakers to maneuver the ball.
In addition, strategic areas on the clubface have been made either thinner or thicker. The use of multiple thicknessesreferred to as v-shaped hot spots or "boomerangs"across the face is intended to increase ball speed and carry distance on off-center hits. The 440cc head is 10 percent deeper than the Exotics CB3 Tour, which helps create less spin and a more penetrating flight, and has 2-degree-open face angle.