To elaborate, they do not save your fingerprint with your profile long term. Every new ticket will get a new scan associated with it, and that is just to ensure that the ticket is only used by one individual (the person who used it first). ?You then have to use the same finger for the duration of that ticket. They do not even really take your "fingerprint" they just extrapolate a sting of numbers from the scan, then match that. So, you're all set. Have fun! and Welcome to the Dis!