Seitei Gata Iai comprises of 12 forms, when practicing this set there is an emphasis on accuracy.
This set of kata is learnt by all Iaido-ka who practice under the ZNKR. This gives us a common set of kata that we can be graded on consistently.
All dojo should have a lineage that relates them to a koryu (old school) set of kata. In the Shinbukan we practice Muso Shinden Ryu.
Muso Shinden Ryu has three levels of kata, Shoden (beginners), Chuden (middle), Okuden (highest), that represents about 40 forms with kae-waza (variations) also adding to that number
There are two sets of kendo kata, Kendo kata is done in pairs, so it is practised with Bokken (wooden swords) only.
This allows us to explore distance and control with a partner, this knowledge should enhance our Iaido.