dude, the 64 pokes dont just effect chakra, its a physical attack as well. all jyuuken attacks hurt. and 64 direct strikes to ver crucial parts of the body will hurt anyone and render them unable to move. if lee got hit by it, he wont get back up. and neji is a fairly good dodger. unless lee can stop the kaiten his speed wont matter. i wont go into too much detail about this because it would spoil the episode coming up, but lee and his gates wont stand much of a chance in my opinion.