I don't doubt your word that skill will produce less spoke tension variation but I don't understand why. It seems that it takes 'x' about of nipple turns to tighten and then true the rim. How can skill change the mechanics of the tight spokes and true rims with the components being of equal quality?
Hey. All of the words are in a $3.00 dictionary. Great literature is simply a matter of arrangement. Some writers are obviously better at it than others.
It's entirely possible to have a wheel that is both laterally and radially true yet still have significant spoke tension differences. I know because I've personally worked with several such wheels. That doesn't happen in a well built wheel. I think that most of the skill comes in the gradual tensioning process. Like writers, some wheelbuilders are better at it than others.