The Japanese mindset about martial arts is that you stick with one style at one dojo, completely empty your mind (including what you assume to be your knowledge and experience) and fully take in what your sensei teaches. Though recently they're beginning to be more open minded, but that's not the majority.

The training at Seidokaikan is geared towards tournaments so the techniques and target areas are for scoring points. No elbow strikes or punches to the face. It's difficult to say a lot more because Seidokaikan is such a big organization but each dojo is run by different sensei who often add their own techniques. The quality of instructors isn't at all the same at each place and perhaps that's a drawback for large organizations.

Sabakishindo is quite different because the target areas are for subduing your opponent by any means necessary and not for scoring points. It's about being about to make immediate responses with the body in an instant to parry attacks and not rely on ballistic random kicking and punching. In the beginning it's pretty cerebral and gave me a headache but I enjoy this style more because it's unique to Japan.