Cobra OPTM X Driver LHCobra OPTM X Driver LH Highly Optimised Design With Extreme Forgiveness The Cobra OPTM X delivers speed, accuracy, and increased stability performance in a slightly larger footprint than the LS model to inspire more confidence over the ball. The OPTM X features an advanced descending weight system with two adjustable weights (11g, 3g) that can each be moved in the back (neutral flight), or toe (fade biased flight) positions to tune trajectory control.