very interesting,
thanks for posting that

in terms of 'tight tolerance'
wouldn't one of the potential benefits
be to hold a predictable
'Quench Clearance'

Tolerances from the
bearings
con rod length
crank throw
piston deck height
piston rock
head gasket compressed thickness
... all these 'stack up'
and make it possible that the worst of the 8 cylinders will result in a quench clearance where the piston crown will impact the combustion chamber flat.

in terms of what a bore diameter should be
it may sound 'wild'
but shouldn't it be a kind of wild undulating shape
for best effect?

I say this because the North Carolina shops not only use a honing plate to simulate the cylinder head bolt stresses ... but they also heat the bores during the hone and keep secret how they vary the temperature from top of bore to bottom. The idea is to get superior ring seal at severe operating conditions, which may mean the bore size when cold varies all over the place.