There are three fully programmable throttle profiles: Dig Mode, Proportional Dig Mode and Single Output Mode:Dig Mode is the default setting, and uses Dig Power (independent of Drag Brake) to lock one motor at a time.This mode requires a proportional switch or a simple three-position switch to operate.Proportional Dig Mode: This completely original mode uses a transmitter"s third channel that is proportional (button or dial), allowing drivers to vary the amount of Dig Power being applied to the motor. This innovative feature provides seemingly endless fine tuning of the Dig for the ultimate vehicle control.Single Output Mode is for applications with single motors or operation without a 3-channel transmitter. In this mode all four motor power wires can be soldered to one brush motor for higher performance, or connect two motors and control them both at the same time.In addition to crawling applications, the M2 Dig 3S ESC is ideal for applications that require two motors, such as robots, boats, tanks and submarines.ON-BOARD AND PC ADJUSTABILITYThe M2 Dig not only gives racers three separate throttle profiles, but can also be easily adjusted via Novak"s reliable on-board setup. There are four PCB-mounted LEDs to aid in programming and two different colored external LED indicator lights.This new ESC can also be fine-tuned with the optional NovaLink Programming Interface (#5440). The downloadable software for the M2 Dig is purpose-built for crawling and assists in adjusting the speed control"s programmable features. This software, as well as updates, will be available from Novak"s website.NO MODIFICATIONS NECESSARYM2 Dig 3S ESC does not require any vehicle modifications to install or operate. Simply plug it into any three-channel surface receiver, and you"re ready to crawl!