Cobra’s commitment to individualized performance begins with four models with different head sizes. Also, a design process that saves 23 grams allows each head to be weighted differently. The two key savings come from a carbon-fiber crown and a milling process that precisely tunes the curves, thicknesses and weight of the face. This lets the larger, standard model (Radspeed) balance front and rear weighting for the optimal mix of low spin and forgiveness on off-center hits that average golfers need. The similarly sized Draw version positions two-thirds of the saved weight toward the heel and in a rear weight chip for maximum slice protection. Finally, the low-spin Tour and Big Tour models have all 23 grams positioned forward to maximize energy transfer on center-face strikes. The Big Tour is large, like the standard model, providing the forgive-ness and low-spin that make it ideal as a backup driver on shorter, tighter holes. All but the Big Tour benefit from twin rails on the sole that help minimize turf interaction. Unseen but no less effec-tive, the front of the rails is hollow, enabling the face to flex more effectively, especially on low-face impacts.