Well, truth be told, that option is NOT on by default. That it was on for you indicates that you missed one or more steps of the installation and configuration directions. You need to go back and review them and make sure you did not miss any important steps. In this case, you missed an important step about resetting the printer to factory defaults: you have EEPROM with the settings for MBI's firmware, not Sailfish. As such, you may have all sorts of crazy values as Sailfish maps a block of 8K bytes
of EEPROM on top of it's view of the EEPROM.
For install and setup directions see