Nice, I almost forgot about their race. + rep
Im not familiar with this race. Going by the responses it was a filler and that is possible why im not familiar with it.
I was talking about
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Anyway in DB 1 kakashi's speed was 4 and in the second and 3rd increased by 0.5. Gai's speed in all 3 databooks has stayed a constant at 5.
Reason for gai's/lee speed is due to his fighting style Goken which involves intense training but also high speed combo taijutsu.
That is the true definition of speed without any enhancements.
However gai is a shunshin user aswell (unlike lee who doesnt have talent in ninjutsu) and when he uses this jutsu, does his true speed in base show. However still lacking when it comes to v1 A, though id roughly say base gai's speed is equal to shunshin A, without raiton