So what if Kakashi can predict Gai's movements.
Gives him enough time to dodge his attacks and pullup a fast "Chidori" on his "balls".

The more gates Gai opens up the harder it will be for Kakashi's eyes to keep up with Gai's speed.
By opening one gate after another Gai will be putting too much stress on his body. He isnt getting any younger. He has passed his "Springtime of youth".

Gai has fought against Kakashi plently of times and knows how to fight him
Rock, paper, scissor. Thats kids play. Give me some hard "facts".

....you obviously haven't been doing your Naruto homework
Thats beacause unlike you I dont go to school anymore.

Anyway I think its your bedtime or more school homework.......jk[img]i/expressions/face-icon-small-cool.gif[/img]