Board Thread:Naruto Discussions/@comment-27924806-20140711165647/@comment-23887466-20140714172439

@TheUltimate3 Sensor-types are shinobi who can use Sensing, Naruto was listed as a sensor-type because he achieved the same result through the Chakra Mode's and Sage Mode's sensing abilities. While not sure if this is the same but as I mentioned above the sensor-type thing was compared to Naruto being able to use lava release. That's why I think the same apply to the Rikudo Senjutsu, as long the person in question is able to balance his chakra with nature energy then he is a sage.

Madara's use of senjutsu during his battle with Naruto and Sasuke is a proof, it wasn't through the sage mode that he stole from Madara as Natural Energy fade with time but through the Rikudou Senjutsu.