sutera ci, both are acceptable, but one "L" is more common, in my findings. it does change the pronunciation, and I like both ways, actually. one "L" puts the emphasis on the first syllable, two "L"s puts it on the ending, which is a bit more "dramatic".

and being Sicilian myself, i'm all about the drama. where is your dad from? i was born in Provincia d'Agrigento, in the south. i can't imagine a better reason to name your kid than a car as beautiful as a Giulia.

our youngest is named after a song, lol, so i know how you feel. "Cat-scratch-fever" you go clean up your room right now. Just kidding.