When people ask me this question, I would usually say, "just the same way all fingers are not equal, eyebrows are not exactly equal too".
Eyebrows grow differently from each other.
So I concentrate on filling to make my brows look the same; that is colour, shape, archs and edges; so you hardly notice if there's a difference.
That is my point of view.
I am curious about yours!
Are your eyebrows sisters or identical twins?
Please drop your comments!
Thanks!