I've recently decided to stick with the 3 Kan in terms of training an study. It seems to me that the defining characteristic of fake Ninjutsu/ninpo Ryuha are the set forms, kata, and rigid technique, instead of the flowing form, endless and subtle techniques used by the 3 Kan. It also seems that whereas the fake Ninjutsu schools are very strict in their techniques and how you perform them, the 3 kans are very loose and forgiving in their way, allowing each individual student to perform the techniques in a way that is best for them. It's as if they give the student tools, and it is up to the student as to how he/she uses them. This, to me, is what i consider the essence of Ninpo. Any thoughts on my change of heart and my observations?