The V-Groove Interior Overcut controls where the Blade Retracts from the Fallout (not the Matboard) on the Interior cuts of the Inside Cut of the V-Groove. The Interior Cut is where the Blade Plunges or Retracts from the Fallout (not the Matboard). If the Interior Overcut on the Inside Cut of the V-Groove is cut Too Long, Decrease the Interior Overcut on V-Grooves. If the Interior Overcut on the Inside Cut of the V-Groove is cut Too Short, Increase the Interior Overcut on V-Grooves. The V-Groove Interior Overcut field is marked with a White Arrow on the Configuration screen and the Map illustration.  See: V-Groove Interior Overcut Configurations | 