https://docs.emtronaustralia.com.au/engine-management/functions/launch-control/rpm-control-retard-pid-cutting-pid/index.htmlRPM Control: Retard (PID) >Cutting (PID): Balancing “Torque Reduction – Retard” vs “Torque Reduction – Cut” is important when using both static and moving target modes for PID Launch Targeting. Generally, timing retard is good for control of torque and can also help spool turbines in those applications. However, during launch, as engine load/boost increases the potential engine torque, ignition timing can/will continue to retard to overcome engine speed from increasing.Hugoen-us