Hot Launch E523 Hybrid Make the game easier with the incredibly forgiving and versatile Hot Launch E523 Hybrid. The Extreme Game Improvement E523 Hybrid includes the patented Houdini Sole along with a super-shallow face, slice-fighting offset designs, and heel weighting for added bias. FEATURES HOUDINI SOLE TECHNOLOGY The Houdini Sole includes an area of mass concentrated on the trailing edge of the sole of the clubhead, as well as a curved leading edge under the face. This unique and patented d