Volume and weight considerations were worked out with yacht designer Craig Johnsen who made center of gravity, center of buoyancy and righting moment Calculations.
David Vohs made a preliminary cad model and that model was exported to Brandon Davis at Turn Point Design for final analysis and adjustment.
Brandon Designed the tool that would become the lead mold then programed his 5 axis machine to cut the parts.
Take a look at some of the tools used to design the lead keel and mold.