Re: Aikikai: Style or organisation?
To the best of my knowledge the Aikikai is an organisation. It is not a style in itself, but is a system where the individual dojos or organisations are recognised by the aikikai(hombu?), as long as they follow the set regulation guidelines. most aikikai dojos follow "similar" grading requirements, but I have seen throughout the various Aikikai associated organisations, a spectrum of variation on each and every technique. Aikikai is just the principle mainstream, a large group that recognises Doshu as the head(hence all gradings are recognised through him for aikikai, from shodan up i believe?). So your first assumption was right, it's an organisation,not a style.