Seeing as the council created the rules regarding the tailed beasts, I had a question that perhaps you all could shed some light on. Now, I don't believe that we ever talked about this before, and if we have please let me know where I can read up on it, but have we ever discussed the topic of a tailed beasts memory and it's releation to former hosts?
For example, seeing as Rusaku had mastered the 7 tails in the past, and spent a lot of time with it in doing so, would the current host be able to extrapolate vital information from the beast regarding me and my relationship with it? With Kurama having been hosted by several people in the past, could I get information on them now that I am the host?
The only example I can find of someone addressing this is in the fight where Kamui was GMing as the 8 tails when Yujo was attempting to capture it. He made mention that the beast had no recollection of Yujo, thus the fight would commence as if they had never shared a vessel. Though, as far as I am aware, that was only included because Yujo needed to fight and win the beast, and it wouldn't be fair for Gyuki to just climb on inside because Yujo mastered him previously.
Personally, I'm fine with the beasts retaining the information on previous hosts, because that would maintain a continuity, but I'm also fine with them losing memory, because then it could lead to people taking advantage of the opportunity that provides.