Bore to Stroke Ratio

How is this calculated? Do sbm's have a good bore to stroke ratio? I know that they have a awesome rod to stroke ratio. Machine shop suggested having the main bearing bore alignment checked and corrected if needed and then measure the block deck height and have the block decked and squared. Also he suggested having the longest rods fitted to the shortest ch pistons. Is this procedure worth it or a big waste of time and money?

Bore/stroke, 1.1-1.2 suppose to be ideal power to friction compromise.

When building power there's the big thing cam heads cr carbs etc... Gets the bulk of hp per $$$$ then comes the littles thing that can add up hp but $$$ per hp gain is small but usually matter in highly competitive racing and or endurance.
Is it needed depends on your bank account or if there's actual major misalignments.