Board Thread:Episode Discussions/@comment-1181222-20180802124044/@comment-31099706-20180804162904

@Dan.Faulkner and @Gilgamesh85. I would like to tell you guys that Chocho never did learn the butterfly mode. She can only use it for appearence and appearence alone. Her Butterfly can be compared to how Naruto used to make his clones before mastering Shadow clone jutsu. Naruto made a weird weak clone that isn't good for anything, but he still managed to make one. But due to the incomplete condition it was in, he wasn't allowed to graduate(which had the condition of making a perfect clone) and how Seven year old Sasuke wasn't able to complete his Fireball jutsu, even though he was able to make some fire., so in the Shinobi world, a jutsu that doesn't perform it's actual purpose is not considered as one. Even if one manages to do something out of it.

And who exactly comfirmed that Chocho doesn't train? It was obvious that Chocho didn't witness the butterfly mode for the first time. She probably was being trained for it from way before during the end of the Gaiden episodes. Shikadai even comfirmed that it wasn't the first time she tried this. So, I guess she did a light training for this.