Quick dumb questions for a dumb idea.

For those of you running Fitech fuel injection, switch your ignition setting from tach to VR coil (or vice versa if you're running timing control) and your car will not start as the system will be looking for the wrong ignition trigger. Additionally if you take the display with you (small enough to fit in your pocket) then there is no way to switch the setting. I am sure that Holley would also have a setting like this.