Flip alignment

[[Ja...]]

I attached a picture of an example of my actual part, but in the base alignment, If I set the planar rotation to an intersection line that intersects zero and is equal distance in both direction away from zero, do I run the risk of flipping my rotation depending on actual points? I have always just avoided this in the past but I have a part that I think this line would be best, not just where it intersects something else.

Alignment.gif