Board Thread:Rebirth: Applications/@comment-2001574-20141019003754/@comment-2001574-20141111010723

One of the main things is there's probably a handful of shinobi who did know of their chakra signature, noting it was slightly different compared to a standard Uchiha's. They had to learn to pick up on that, which is why they had to begin adapting new strategies to help keep out of these sensors' sights.