Someone more knowledgeable can jump in and correct me if I'm wrong; but I think you are getting down to splitting hairs here.
I'm not sure we need to get that focused on direction.

For example: If your success direction is NW the parameters for NW are broad enough to encompass 300-340 degree's. This may be a bit inaccurate as my manual is in my car but you get the idea.

Marie gives the parameters in the manual somewhere; or is it the quick start manual. I'm not sure.

I do know that we need not concern ourselves with directions down to even 1 degree.

I think what is more important is intention. What is our intention in our success direction or any of the other three directions.

These are the building blocks of a successful & happy life.
Hope this helps,

Blessings,
gus