first the pole hights are far from random, they are set for a set of strings with a wound G string. As for making flat pole pickups almost every good after market pickup maker offers vintage stagger as well as a flat stagger and some are even offering a "hybrid" stagger which is pretty much a vintage stagger but with a lower G pole.
I happen to like a vintage stagger strat pickup no matter what the guitar is...they just sound right to me