just finished aqua sure-ing my tubs tonight
Do your Vittoria's have cotton casings? If not, while this is common practive for Dugast tubulars for road and Cx, it is because those tires are handmade with cotton or silk casings which typically do not have any kind of protective layer to keep the casing from developing mold and rotting should they get wet. Vittorias typically already have a protective layer on the casing to prevent such damage from happening so really no need to take any additional precautions.
will tub glue stick to this or do I need to rub/rough it off with some sand paper?
Consider using a dinner knife or similar dull edged implement to scrape away excess sealant that may have gotten on the base tape.