when i got my "humbucker" a guy told my about the fender and gibson spacing.
G was standard, and F was special design for fender guitars.
i have actually a G spaced in the neck and a F spaced in the bridge.
i got a jag with a tom!
the poles seem to be closed to getter but its hardly noticeable with the eye.
no strings are of, so its fine.
i think its bull####.(sorry)