I re-read your post and there's no way for any of us to definitively tell w/o seeing it in person...but...if you have a friend who's fanatical about washing/waxing their own car, with the right equipment/supplies they may actually be able to buff off that "small little nick" without having to resort to touch-up. Or if you really don't like the brush touch up applicator, get an artistic friend/car waxing fanatic to do it for you--they'll probably do a better job of it. Good luck!