Board Thread:Wiki Discussions and Support/@comment-26010916-20150211152912/@comment-26010916-20150211164258

Archangel489 wrote: I always thought of it as the cross eyes with no pigment was the sage mode buff and the cloak was due to the tailed beasts. The truth seeking balls could be caused by either or both. From what we understand via dataoboks and manga. The form is Hagoromo's senjutsu (yang) + Kyuubi's chakra. The biggest indication is the sound work that involves the form making, both KCM/BM have a "sizzle" or "flame" kanji. So does RSM.

You are 100% correct. The TruthSeekingBalls are created via Tailed Beasts chakra. That IS stated in the databooks FYI to anyone reading this