Another gauge corrector--cheaper than MeterMatch, 33.00

So I gotta ask - is anybody old-school on this board? These gauges are 'adjustable' so this can be done manually. But it's a real PIA because the adjustment is very finicky. I've got mine close, where the pointer is just at the bottom of the Empty line and I have about 4 gallons in the tank. At least it's predictable!