I agree with Paul C.
Lemme tell you a little story about my college speech class. Everyone did alright speeches but this one guy was always the best. He never had notes, he never went "uh... like..." and it seemed he always had a joke or a story to clarify something he said and if it was a fact he would state a reference. Anyway, he told me his "secret" because I was the only one interested in his one speech he gave about stocks, guess I flattered him buy writing down the name of this one book he mentioned in his speech. There were 3 blackboards in the room , one in front, on on the side and one in back. He wrote his notes on the back blackboard the night before he would have to give his speech. Everything was coded and abreviated so no one but him would be able to tell what anything meant and on the top was "please do not erase." I did NOT notice those notes when I walked in the room or even when I was standing there doing MY speeches and no one else did either. I think he had to have a good memory too for everything to flow.
