Mercury - LCM Module Programmed Surf Code Legacy Command Module 77-8M0173267. OverviewThis module is the programmed Legacy Command Module used for SmartTow Surf setups, giving older electronic controls a clean way to talk to the rest of the system. It handles throttle, shift, gauge data, and helm communication without you needing to rework the whole boat. Once installed, the system feels more predictable because the commands coming from the legacy controls are processed the way the newer compone