A control systemmethod for an at least partially automated transmission system includes means to determine engine fueling required to cause a gross engine output torque ) resulting in zero flywheel torque. An incision tool for creating an incision having a controlled length in a side wall of a patient’s body tissue conduit is provided. Accordingly, the DC offset correction apparatus can be implemented by low-speed DACs and the fast analog MUX that are relatively small-sized and low-cost elements.