actually, i've tried that and still gotten a Nazotchi.
i always keep a Tamagotchi Family Tree, and when i married my V.6 Chantotchi, to my V.5 Kutchipatchi (youngest of three: Mametchi, Chantotchi, Kutchipathchi, and i named them the "SUSHI" family), it still ended up a Nazotchi on my V.6...