So if a mage flies down the street, will it just look like a trick (as suggested in part 4), or will most people think you are using magic (as suggested in part 2)?
Not quite contradictory, but more of a question of timing. If you saw someone randomly flying down the street, what would your thoughts be? You might have an initial reaction of thinking "What the hell?!" and magic, but unless that flight and further magical events are shoved in your face, aren't you more likely to eventually dismiss it as some weird fluke or trick? We, and all normals in the Verus'verse, know that magic doesn't actually exist. Take the loup-garou incident in Fool Moon (I'm assuming you've read the Dresden Files) - even though it was recorded on cameras in a police station, it was dismissed as a hoax.
My homebrew - If you use it, please let me know how it goes!