Originally Posted by Meteros
it didnt lose to it both stoped each other only diffrence is sasuke just punches naruto in the stomace to knock him out, and naruto just scratched his forehead protector.
From the translations ive read it says nothing about kakashi or the 4th not being able to add there element to the rasengan becasue of incompatability. From how the translations sound like it just seems that rasengan is a high lvl jutsu that is extremely hard to add your nature to it.
They even say it rare for shinobi to form and change the nature of there chakra at the same time, maybe its just harder with rasengan because of the perfect sphere form you must make with it to be effective.
I have also read that the 4th created rasengan specifically for his element ( most likely wind) but since the rasengan is th highest form of chkra manipulation it was way more difficult.
heres the link if you need the translation
http://mangahelpers.com/forum/index.php?topic=8104.0