If for some reason your finger scan does not match up ( which has happened for both Dh and myself many times) You will be required to show your id again. So FL residents make sure you take your picture id into the parks, just incase your finger scan does not work.
MandM If your friends are going into the park with you and all of you plan on eating at sitdown meals have your friends get the Disney Dining Experience. You will get 20% off your bill for up to 6 people, and it is only 70$ for a full year. But you will have to be with the FL residents. If you like sitdowns it really does help. My DH and I saved the cost of it between the 2 of us in just 4 days at disney, and we are going back this weekend with a group of 6 and will be very happy to have all our meals discounted.