O.K I now have 3 ultimate weapins (Lulu's, Yuna's and Tidus's) but i do not see any advantage to them- in fact, at the moment they are a disadvantage because they have 'No AP'. I hear about upgrading them with items, I have the sun sigil and a couple more items like that- what do i do with them? How do i use them? Please tell me what is so good about these ultimate weapons. Thanks a lot,
Sam