personally i think too much is made of it. i couldn't care less if its "accurate" throughout the sweep as long as it shows empty before its actually empty.
I hear you. I drove 11k miles with the Spectra unit and I got used to looking carefully at which part of the E the needle was on. But I like it when things work the way they should, and I enjoyed tinkering with it. This post is really for the scientists and engineers out there, or anyone who is curious why the new ones do what they do.