This document summarizes a study on optimizing the hull shape and dimensions of a point absorber wave energy converter. The study aimed to derive an efficient design for the buoy and improve the physical modeling of the device's response to waves. Different shapes and dimensions were evaluated in a frequency domain model and the most efficient design was selected for further time domain modeling and analysis, which included parameterizing drag coefficients obtained from computational fluid dynamics simulations. The improved time domain model was validated against simulation results and found to increase the physical accuracy of modeling viscous effects.