Hot Launch E523 Driver The Extreme Game Improvement Hot Launch E523 Driver is designed to be the easiest driver to hit in the market for slower to medium swing speeds.Every aspect of the E523 is focused on improving launch and accuracy.The 460cc driver Titanium is incredibly stable at impact thanks to it extreme Moment of Inertia (MOI) properties. The technology built into the E523 Driver is all about the easy launch, consistent playability, and maximum forgiveness across the entire face. FEATUR