Well! I do have the difference in #'s.
I built my 1st 440 BB in 1987. Used a one inch steel plate that I had made. I had it machined so it was flat & even the indents where there is a protrusion on the underside of the Head-bolts.
I had a used Fel-Pro Gasket fitted as well.
After the finish hone, we released the plate to do a check to see what difference there was.
"Surprise", not at all! One inch down the bore it was "3-1/2 thou" at each bolt.
And that is right where all your cylinder pressure has peaked.
Hope this helps with making the only choice you should do.
Its Not over-rated.
Mike in New Zealand.