The Callaway 2006 Big Bertha Single Iron features "Extreme Notch Weighting" technology that is found on most of their early irons. This design involves placing additional weight in the perimeter of the clubhead, particularly in the heel and toe areas. The Extreme Notch Weighting helps to increase the moment of inertia (MOI), which enhances the club's stability and forgiveness on off-center hits. This technology lowers the center of gravity, promoting higher launch angles and more consistent ball flight. By redistributing weight around the edges of the clubhead, the design ensures more reliable and controlled performance, providing golfers with improved accuracy and distance.
