One comment on the rust pits. They shouldn't be there. Period. That's an issue for folks who use water as a lubricant on their stones.
They are in every piece of steel exposed to anything that will allow them to form.
Like I've already said, "If the scratches and rust pits as visible back from the edge are acceptable to you, then by all means stick with that 'flat back'."
You're entitled to your own opinion. Unless you can prove such scratches and pits do not exist on your blades, then that's all you have. Sorry.