first let me start by saying that my statement here is an observation and is in no way fact al though it could very well be. also this is not meant to start an argue ment or to call out anyone. i am not trying to get on anyones bad side just thought this would be an interesting topic to discuss and find out your thoughts on it. as i was looking over the past soke listings for the various ryu ha i noticed that some of these arts have at one time or another been headed by people comming from koga, koka, kouka how ever you wanna spell it now days. the shinden fudo ryu was headed by people from koga for 200 years. not just because some of the last names are in fact koga, but the other names of families that are known to come from the koga region. not sure exactly which ones they all were, as i am not looking at the soke lists at this moment. i just used sfr as a reference because i remembered that one. now i am fully aware that only 3 of the nine schools are considered ninjutsu and only one of these has been taught. but lets not count out this possibility. also i would like to note that in koga there is not one style there are specialized schools from which they would learn each skill. ie before a mission an operative would train in katori shinto ryu for sword meifu shinkage for shuriken and so on and so forth. not saying these schools specifically just using them as an example. what are your thoughts on this and has anyone else noticed this before?