Kris_Tylers_1273
Thanks for the chapter. Learning the technique of Opening the 8 Doors while having the 9 tails inside is not a good idea. What can go wrong? I don't know, but I can think of 3 options, either the fox releases it, the seal prevents the doors from opening, or you just explode from the large amount of chakra out of control.
Like from my Point of view, The Eight gates are different from the Death Reaper seal... For example, The Eight gates are stationed in the body, The seal doesn't really take much effect until Sasuke is beaten to near death by Haku. That's when the seal trembled and Naruto entered one tail. So it should be safe to learn it, until Naruto calls a truce with the Kyuubi...