I have been updating the Ninja board over the weekend with information on the 9 schools:
shirotoratiger.proboards.com/board/12/ninjutsu-ninpo-taijutsu-ninja-stuff
We have been covering Gyokko Ryu and Koto Ryu and will continue to do so over the Summer period - these schools complement each other and, with the work we are doing in Kempo and Karate, make a strong multi style Unarmed Phase.
We will look more into Shinden Fudo Ryu and the Dakentaijutsu of Kuki Shinden as well as some of the Takagi Yoshin jujutsu - these 3 schools will be seen as more supplemental for now
Togakure Ryu is the main school of Ninjutsu - the Taijutsu is already covered in Gyokko and Koto, though I will be bringing along Shuriken and Shuko to sessions and will discuss strategy in use of the "Four Treasures"
For weapons we will be using Kukkishinden - specifically the Hanbo
Gikan, Kumogakure and Gyokushin will be referenced, but not used directly
We will look to take the opportunity to get out on the grass over the summer
How deep you want to go into these schools, in terms of history and strategy, is totally up to the individual - the information is on the forum and in the techniques