Or Lee is just really that fast.
Lee's not that fast, also Naruto was in BM in one of those scans and he wasn't going at his full speed; he rarely used it in KM/BM/BSM because of plot. Naruto's full KM speed is compared to FTG so even thought Edo Madara has the Rinnegan and is a sensor; I don't see him reacting in time if BM Naruto was going anywhere near full speed. Madara let Lee hit him just like Obito let Naruto's FRS pass thru him. Also Kakashi stated that the chakra Naruto gave everyone was more in volume and power
You must be registered for see links
and
Or Lee is just really that fast.
Lee's not that fast, also Naruto was in BM in one of those scans and he wasn't going at his full speed; he rarely used it in KM/BM/BSM because of plot. Naruto's full KM speed is compared to FTG so even thought Edo Madara has the Rinnegan and is a sensor, I don't see him reacting to anything near BM full speed. Kakashi said the chakra Naruto gave everyone was more in volume and stronger when compared to what Kurama gave him early and the little bit of chakra Kurama gave Kakashi increased his jutsu power by at least 3 so this would increase the power by 4x-7x+
You must be registered for see links
and
You must be registered for see links
. Remember, Obito and Madara decided to play with the Alliance first, they weren't actually fighting to kill everyone since they'll be placing them in IT, Madara seen them coming at him but he doesn't defend at all plus Lee jumped off Gai from mid air as well.
Lee threw a kunai from behind 8th gate Gai going full force so Kunai throwing speed>Gai in 8th gate. Also Lee does use chakra to enhance his speed just like with Gai; how else do you think their speed increase as they get more chakra from the gates? It doesn't enhance their physical capabilities like SM, they use chakra for that like any other ninja and the gates is tearing up the body so I don't see it enhancing it if it's injuring it like that.