I want to bring this thread back

I wanted to know the reasoning behind changing the Voltage settings. I see everyone usually changes them to something like 0v=9 / 5v=19, but what for? Why wouldn't you leave the setting as close as possible to the default values of 0v=7.35 / 5v=22.39 as it was intended to read and just input those into the DL?

If the LC-1 was intended to read between 7.35-22.39, if you narrow them down to 9-19, wouldn't this give you less accurate readings on either the gauge or the DL? Or am I misinterpreting this and those values are simply cut-off points just to the display the information?