Jory Boling wrote:
From my limited experience and research, the koryu iaido arts all contain mostly kata that start from seiza (note: "limited" being a key word here).
The two koryu iaido that most people are familiar with are Muso Shinden Ryu and Muso Jikiden Eishin Ryu. I've practiced only the former, but the two have very similar curricula. In MSR, there is one
set of solo forms that start from seiza. There are three more sets of solo waza: two from tatehiza and one from standing. To my knowledge, none
of the paired forms start from seiza. They all start from either tatehiza or standing--often different sets will basically be repeats of the same basic form from tatehiza then from standing.
However, the seiza solo forms come first, so that is the most common impression of what iaido is like.