Quote (Cyba @ Feb 13 2013 06:37pm)
in one of the recent chapter, he said the uchiha possess a large chakra reservoir which allows them the consistent use of the sharingan.
and it was stated/implied in the manga several time..
you can also see it for yourself, kakashi was drained from using the mangekyou against tobi so many times, but he was rejuvenated by the kyuubi's chakra to use it past his limits
hrm which chapter i dont remember it in the recent 3 and im sure it could be a common trait but i dont think its the defining trait either. Kakashi specifically said uchiha body instead of chakra reserve.
but yeah if you dont mind telling me the recent chapter where its stated that the amount of chakra you have is the reason?
i mean the 2nd said the uchiha release a special chakra so it has to be their bodies that allow the sharingan to work more efficiently its not just that you have a massive chakra reserve and just dont run out
dont get me wrong of course with one you can last longer than kakashi but im saying a uchiha with less can last just as long meaning its his genes that really affect the sharingan