A golf club head with low and high density zones designed to provide specific densities for use in various parts of the club head to achieve maximum volume and properties within specific weight goals. Extended Tool Command Language can define services that can include a series of interactions with a mainframe system and service definitions can be added or updated on the interface during operation of the interface without disrupting processing. The control unit changes whether to acquire focus states at the second intervals based on the focus states obtained at the first intervals. , and the pressure being greater in the initial delignification step.