I don't do anything to mine besides pluck the stray hairs. My brows are a bit unruly (somewhat asymmetrical too), but also kind of sparse (and I also have a pseudo-bald spot where the hairs suddenly change direction on one of them) so I've always been afraid of over plucking them and having them vanish on me. (My mom has super thin and sparse brows so it's a valid concern! On a related note, I never pencil my brows because I think it makes me look disconcertingly like my mom!) Anyway, I have gotten used to the asymmetry and the non-ideal shape and I don't really think anyone notices. In reference to your comment on my WIW, that's another thing that specs hide!
Anyway, I think if I were you I would be wary of removing even more to fix them. (But maybe that is just my neurosis talking.) I think I'd just pencil them in until they grew back.
Also, I have been waxing my legs for years and I am still waiting for the hair to stop growing back, LOL.