But the idea that you can't keep yourself from running out of gas if you use a Spectra reproduction instead of a rebuilt factory sender is just silly. Consistency is more important than accuracy, as long as I know what the gauge indicates and it does that consistently I won't run out of gas, even if a 1/2 tank on the gauge isn't exactly a 1/2 tank by volume.
It's like knowing how many miles you've traveled and understanding roughly what your gas mileage is. Sure, it might not be perfect, but I know I can drive ~200 miles if I filled it up, and also that I shouldn't try and drive 250. And I know when my gauge hits "E" I actually have a few gallons left, but I don't let it go that far very often either.