Yeah, you have a great time using your brain in Final Fantasy X-2. You'll get 100% no problem using just your brain. Your brain will tell you you have to choose the Youth League in order to get 100%. Your brain will tell you you have to immediately talk to O'aka as soon as he comes on the airship in order to get .1% story completion. Your brain will tell you there's a secret hidden dungeon in the Mi'hen Highread and you have to send Chocobos there relentlessly to find it.
Brains are just so awesome.
Thank you for the vote of confidence. Typically, on my first playthrough, I do just go with the story. That way all the sidequests and things I miss give the game replay value ya know?
But we'll see what I do when I get the game. Hopefully I'll have it by this weekend.