Board Thread:Naruto Discussions/@comment-5054236-20150717003436/@comment-6769189-20151213062826

The only time we see a different chakra signature is when 1 being is sealed in another. I.E. Naruto's chakra is different from Kuramas chakra.

All other forms seem to integrate or assimilate. Its a theory I came up with a while ago for different type of chakra transfers.

In the case of Kabuto, Sasuke, or anyone with body mods, the different signatures mix creating a new one. Depending on hiw much modding was done. There hasnt been a single case where these signatures have been called upon individually after combined, however if examined closely enough they can be identifiable.