A power-tool system has at least one power-tool parting device which includes at least one cutting strand and at least one guide unit. A table layout includes betting areas for a competition wager that one side or the other will win the game as well as a proposition wager area that the sides will tie. Default values for a maximum controllable curvature limit and a maximum controllable angle replace the limits calculated and applied by the calibration model that used incorrect trailer measurements, until corrected trailer measurements may be entered by the driver.