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?

If you want to worry about this, get a 383 or 400 and call it a day.
This is small potatos, don't try to reinvent the wheel, if you want to go nuts, focus on heads.

Of course, I could be wrong.